Conversation
What people say to one another is in scripture a moral and spiritual matter, not a peripheral one. Conversation is where the heart is exposed, where neighbors are wounded or healed, and where the fear of Yahweh either does or does not show. The wisdom literature treats it as a discipline; the prophets weigh nations on it; the apostolic letters make it part of the new self. The thread that runs from Proverbs and Sirach through the epistles is that speech is never neutral — it builds up or it destroys, gives grace or grieves the hearer, and a person's words are reliable evidence of what is in them. See also Tongue for the organ itself and the gift of languages.
Words Have Weight
The premise is that words act. They turn wrath aside or stir it up: "A soft answer turns away wrath; But a grievous word stirs up anger" (Pr 15:1). They cut and they heal: "There is one who speaks rashly like the piercings of a sword; But the tongue of the wise is health" (Pr 12:18). They bring joy when they fit the moment: "A man has joy in the answer of his mouth; And a word in due season, how good it is!" (Pr 15:23). They have their own beauty when set in the right place: "A word fitly spoken Is [like] apples of gold in network of silver" (Pr 25:11). And they have a strange physical force: "By long forbearing is a ruler persuaded, And a soft tongue breaks the bone" (Pr 25:15).
Sirach picks up the same evaluation. A word can be the substance of a gift: "Does not the dew make the burning heat to cease? So a word changes [the character of] a gift" (Sir 18:16); "For there is a good word which is better than a gift; And both belong to a gracious man" (Sir 18:17). Speech is the medium in which wisdom becomes public at all: "For by speech wisdom is made known, And understanding by the answer of the tongue" (Sir 4:24). Withholding the right word in the right moment is itself a fault: "Do not withhold a word in due season, And do not hide your wisdom" (Sir 4:23).
Because words act, they should be weighed before they are spent. "Bind up your silver and gold; And make a balance and weight for your words" (Sir 28:25). "Prepare your speech, and so let yourself be heard, Bind up instruction, and [then] make your answer" (Sir 33:4). And rashness is dangerous on its own terms: "Glory and shame are in the hand of one who speaks rashly; And the tongue of a man is his fall" (Sir 5:13); "Do you see a man who is in a hurry in his words? There is more hope of a fool than of him" (Pr 29:20).
The Mouth of the Righteous
Scripture has a positive ideal for the speech of the godly, not only a list of warnings. The mouth of the righteous is treated as life-giving and instructive. "The mouth of the righteous is a fountain of life" (Pr 10:11). "The mouth of the righteous talks of wisdom, And his tongue speaks justice" (Ps 37:30). The capable woman of Proverbs 31 is described in the same terms: "She opens her mouth with wisdom; And the law of kindness is on her tongue" (Pr 31:26). The priestly ideal in Malachi runs along the same line: "The law of truth was in his mouth, and unrighteousness was not found in his lips: he walked with me in peace and uprightness, and turned many away from iniquity" (Mal 2:6).
Wisdom can be a gift granted for the sake of others. Isaiah's servant says, "The Sovereign Yahweh has given me the tongue of those who are taught, that I may know how to sustain with words him who is weary" (Is 50:4). Job's friends are reminded that earlier in his life Job had been such a person: "Your words have upheld him who was falling, And you have made firm the feeble knees" (Job 4:4).
The pattern is fulfilled in Christ. Of him 1 Peter says, "who did no sin, neither was guile found in his mouth" (1Pe 2:22). The same ideal returns in the Apocalypse, marking out the redeemed: "And in their mouth was found no lie: they are without blemish" (Re 14:5). And the goal toward which all Christian speech is bent is corporate worship: "that with one accord you⁺ may with one mouth glorify the God and Father of our Lord Jesus Christ" (Ro 15:6).
Spiritual Conversation
Some conversation is explicitly about Yahweh, and scripture sets it apart. The Shema's instruction to parents makes household speech a continuous catechesis: "and you will teach them diligently to your sons, and will talk of them when you sit in your house, and when you walk by the way, and when you lie down, and when you rise up" (Dt 6:7), repeated in Deuteronomy 11:19. The psalmist anticipates the same kind of speech among the saints: "They will speak of the glory of your kingdom, And talk of your power" (Ps 145:11).
Malachi gives the clearest narrative picture. "Then those who feared Yahweh spoke one with another; and Yahweh listened, and heard, and a book of remembrance was written before him, for those who feared Yahweh, and who thought on his name" (Mal 3:16). The conversation of those who fear God is heard in heaven and remembered.
In the apostolic letters this becomes corporate worship in speech. Paul instructs the Ephesians to do it together: "speaking one to another in psalms and hymns and spiritual songs, singing and making melody with your⁺ heart to the Lord" (Eph 5:19). Spiritual conversation is not a hushed undertone but the assembly's normal speech.
The Bridled Tongue
Wisdom and the apostolic letters agree that the tongue must be governed. "Keep your tongue from evil, And your lips from speaking guile" (Ps 34:13), echoed in 1 Peter 3:10: "For, He who would love life, And see good days, Let him refrain his tongue from evil, And his lips that they speak no guile." The same instruction appears in Proverbs as guarding: "He who guards his mouth keeps his soul; [But] he who opens his lips wide will have destruction" (Pr 13:3); "Whoever keeps his mouth and his tongue Keeps his soul from troubles" (Pr 21:23).
James makes the bridled tongue the test of religion: "If any man thinks himself to be religious, while he doesn't bridle his tongue but deceives his heart, this man's religion is useless" (Jas 1:26); "For in many things we all stumble. If any doesn't stumble in word, the same is a perfect man, able to bridle the whole body also" (Jas 3:2). And he names the unbridled tongue's whole field of damage: "And the tongue is a fire: the world of iniquity among our members is the tongue, which defiles the whole body, and sets on fire the wheel of nature, and is set on fire by hell" (Jas 3:6).
Sirach prays for the same restraint: "O that one would set a watch over my mouth, And a seal of shrewdness upon my lips, That I do not fall by means of them, And that my tongue does not destroy me" (Sir 22:27). And the blessing is reserved for the man who has held to it: "Blessed is the common man whose mouth has not grieved him; And whose heart would not bring judgment on him" (Sir 14:1); "Blessed is he who has not slipped with his tongue" (Sir 25:8).
A Time to Keep Silent
Restraint runs into outright silence. "[There is] a time to keep silent, and a time to speak" (Ec 3:7). Silence is sometimes wisdom's tell: "Even a fool, when he holds his peace, is counted wise; When he shuts his lips, he is [esteemed as] prudent" (Pr 17:28); "He who spares his words has knowledge; And he who is of a cool spirit is a man of understanding" (Pr 17:27); "He who despises his fellow man is void of wisdom; But a man of understanding holds his peace" (Pr 11:12); "Therefore he who is prudent will keep silent in such a time; for it is an evil time" (Am 5:13).
Sirach develops the same wisdom in detail. "One keeps silence and is accounted wise, And another is despised for his much talking" (Sir 20:5); "One keeps silence, having nothing to say; And another keeps silence, for he sees [it is] a time [for silence]" (Sir 20:6); "The wise man is silent until the [proper] time, But the arrogant and the scorner take no note of the time" (Sir 20:7); "He hides his words until the [proper] time, And the lips of the faithful will declare his understanding" (Sir 1:24); "A wise man makes himself beloved with few words, But the pleasantries of fools are wasted" (Sir 20:13). The mouth and the heart trade places between the fool and the wise: "The heart of fools is in their mouth, But the mouth of the wise is [in] their heart" (Sir 21:26).
There is also etiquette: not interrupting, not answering before listening. "If you have anything [to say], answer your fellow man; If not, [put] your hand on your mouth" (Sir 5:12); "Do not return an answer before you hear; And do not speak out in the middle of [someone] talking" (Sir 11:8). At a banquet the rules vary by station: "Speak, O elder, for this is your part, Yet with discerning discretion, and do not hinder the singing" (Sir 32:3); "When the music begins do not pour forth talk, And do not display your wisdom when it is not wanted" (Sir 32:4); "Speak, young man, if you are constrained [to do so], If asked twice or even thrice" (Sir 32:7); "Sum up your speech, say much in little, Be as one who knows and can keep silent" (Sir 32:8); "Among elders do not assert yourself, And among the noble do not be perpetually talking" (Sir 32:9); but if the moment comes, speak truthfully: "But if anything comes into your heart, speak, In the fear of God, and not in senselessness" (Sir 32:12).
A particular kind of silence belongs before God himself. "Hold your peace at the presence of the Sovereign Yahweh; for the day of Yahweh is at hand" (Zep 1:7); "But Yahweh is in his holy temple: let all the earth keep silent before him" (Hab 2:20); "Be silent, all flesh, before Yahweh; for he has awakened out of his holy habitation" (Zec 2:13). Joshua's army keeps the same silence around Jericho: "And Joshua commanded the people, saying, You⁺ will not shout, nor let your⁺ voice be heard, neither will any word proceed out of your⁺ mouth, until the day I bid you⁺ shout" (Jos 6:10). Job's three friends, sitting with him in his disaster, do better in their silence than in any of their speeches: "So they sat down with him on the ground seven days and seven nights, and none spoke a word to him: for they saw that his grief was very great" (Job 2:13). Job himself gives them the verdict: "Oh that you⁺ would altogether hold your⁺ peace! And it would be your⁺ wisdom" (Job 13:5). Lamentations puts the same posture into the form of a rule for those under God's hand: "Let him sit alone and keep silent, because he has laid it on him" (La 3:28).
Slander, Backbiting, and Whispering
Scripture catalogs evil speech in its specific forms. Slander is forbidden in the law: "You will not go up and down as a talebearer among your relatives" (Le 19:16). The psalmist describes the man who may dwell with God in part by what he refuses to say: "He who does not slander with his tongue, Nor does evil to his friend, Nor takes up a reproach against his fellow man" (Ps 15:3). Yahweh sets himself against the slanderer: "Whoever secretly slanders his fellow man, I will destroy him" (Ps 101:5). And Jeremiah indicts the brother turned slanderer: "Take⁺ heed every one of his fellow man, and don't trust⁺ in any brother; for every brother will completely supplant, and every fellow man will go about with slanders" (Je 9:4).
Talebearing and double-tongued speech break friendships. "He who goes about as double-tongued reveals secrets; But he who is of a faithful spirit conceals a matter" (Pr 11:13); "He who covers a transgression seeks love; But he who harps on a matter separates best friends" (Pr 17:9); "He who goes about as a talebearer reveals secrets; Therefore don't company with him who opens his lips wide" (Pr 20:19). Whispering has the same destructive effect: "A perverse man scatters abroad strife; And a whisperer separates best friends" (Pr 16:28); "For lack of wood the fire goes out; And where there is no whisperer, contention ceases" (Pr 26:20). The whispered word goes deep into the hearer: "The words of a whisperer are as dainty morsels, And they go down into the innermost parts" (Pr 18:8; Pr 26:22). The north wind and the backbiting tongue are paired: "The north wind brings forth rain: So does a backbiting tongue an angry countenance" (Pr 25:23).
Paul's vice lists put these patterns at the heart of pagan and unreformed Christian behavior alike. The Romans-1 catalog includes "whisperers, / backbiters" (Ro 1:29-30). Of the Corinthian church Paul fears finding "strife, jealousy, wraths, factions, backbitings, whisperings, swellings, tumults" (2Co 12:20). 1 Peter's instruction is to put the whole class away: "Putting away therefore all wickedness, and all guile, and hypocrisies, and envies, and all evil speakings" (1Pe 2:1). James forbids it among siblings: "Don't speak one against another, brothers. He who speaks against a brother, or judges his brother, speaks against the law" (Jas 4:11).
Sirach holds the same view. The slanderer rates among the worst of public threats: "Of three things my heart is afraid, And concerning a fourth I am in great fear: Slander in the city, an assembly of the multitude, And a false accusation; worse than death are they all" (Sir 26:5). The tongue is the household's scourge: "The scourge of the tongue are they all" (Sir 26:6). And the friend whose mouth is honeyed in your face and altered behind your back is a stumbling block: "Before your eyes his mouth will speak sweetly, And he will marvel at your words; But afterward he will alter his mouth, And with your words will make a stumbling block" (Sir 27:23).
The pattern extends to the petty and personal. "Therefore, if I come, I will bring to remembrance his works which he does, talking foolishly against us with wicked words. And not content with this, he doesn't receive the brothers either, and he forbids and casts out of the church those who would" (3Jn 1:10). The Psalter knows the same world: "All who hate me whisper together against me; Against me they devise my hurt" (Ps 41:7); "His mouth was smooth as butter, But his heart was war: His words were softer than oil, Yet they were drawn swords" (Ps 55:21).
Vain Talk and Flattery
Beyond malicious speech there is a whole class of speech that is simply useless or deceitful. "In the multitude of words transgression does not cease; But he who refrains his lips does wisely" (Pr 10:19). "In all labor there is profit; But the talk of the lips [tends] only to poverty" (Pr 14:23). "A fool utters all his anger; But a wise man keeps it back and stills it" (Pr 29:11). "For a dream comes with a multitude of business, and a fool's voice with a multitude of words" (Ec 5:3). "The beginning of the words of his mouth is foolishness; and the end of his mouth is mischievous madness" (Ec 10:13).
Sirach's portraits of the loud man are some of the sharpest in the canon. "The discourse of a fool is like a burden on a journey, But upon the lips of the wise grace is found" (Sir 21:16). "The fool lifts up his voice with laughter, But the wise man scarcely smiles in silence" (Sir 21:20). "The lips of babblers [only] repeat the things that are not theirs, But the words of the wise are weighed in the balance" (Sir 21:25). "The discourse of fools is an annoyance, And their laughter is sinful wantonness" (Sir 27:13). "He who is abundant in word is abhorred, And he who takes authority [to speak] is hated" (Sir 20:8). "As the fat tail of a sheep eaten without salt, So is a word spoken out of season" (Sir 20:19).
Flattery and crafty speech belong to the same family. "For neither at any time did we come in words of flattery, as you⁺ know, nor in a cloak of greed, God is witness" (1Th 2:5). "This I say, that no one may delude you⁺ with persuasiveness of speech" (Col 2:4). 2 Peter describes the false teachers in the same terms: "And in greed they will with feigned words make merchandise of you⁺ ... For, uttering great swelling [words] of vanity, they entice in the desires of the flesh" (2Pe 2:3, 18). Paul's qualification of the elders is the negative image: "For there are also many unruly men, vain talkers and deceivers, especially those of the circumcision" (Tit 1:10).
Sirach pairs talk with work and finds talk wanting on its own: "Do not be boastful with your tongue, And slack and negligent with your work" (Sir 4:29). And he is willing to grant that even the man who hates speech has at least less malice in him: "But he who hates talk has the less malice" (Sir 19:6). Repetition is to be avoided as a habit: "Never repeat a word, Then no one will reproach you" (Sir 19:7).
Christian Speech
The apostolic letters distill the wisdom into a small set of imperatives for Christian conversation. Speech that builds up replaces speech that tears down. "Let no corrupt speech proceed out of your⁺ mouth, but such as is good for edifying as the need may be, that it may give grace to those who hear" (Eph 4:29). "Let all bitterness, and wrath, and anger, and clamor, and railing, be put away from you⁺, with all malice" (Eph 4:31). The Colossian parallel is more explicit about what comes off and what goes on: "but now do you⁺ also put them all away: anger, wrath, malice, railing, shameful speaking out of your⁺ mouth" (Col 3:8). What replaces it: "Let your⁺ speech be always with grace, seasoned with salt, that you⁺ may know how you⁺ ought to answer each one" (Col 4:6).
Paul's instruction to Titus is the same in shorter form: "sound speech, that can't be condemned; that he who is of the contrary part may be ashamed, having no evil thing to say of us" (Tit 2:8); and again, "to speak evil of no man, not to be contentious, to be gentle, showing all meekness toward all men" (Tit 3:2). 2 Timothy fixes the doctrinal side of it: "Hold the pattern of sound words which you have heard from me, in faith and love which is in Christ Jesus" (2Ti 1:13).
James adds a sharp instruction about oaths, picking up the wisdom tradition's discomfort with extravagant speech: "But above all things, my brothers, don't swear, neither by the heaven, nor by the earth, nor by any other oath: but let your⁺ yes be yes, and your⁺ no, no; that you⁺ may not fall under judgment" (Jas 5:12). The plain word is the truthful word; oath-formulas add nothing real, and they put the speaker at risk of judgment.
There is also kindness as a discipline of speech. The Old Testament records it as a regular human grace. Joseph "comforted them, and spoke kindly to them" (Ge 50:21). The counselors urge Rehoboam, "If you are kind to this people, and please them, and speak good words to them, then they will be your slaves forever" (2Ch 10:7). Nebuchadnezzar's successor "spoke kindly to" Jehoiachin (Je 52:32). Wisdom names this speech: "Pleasant words are [as] a honeycomb, Sweet to the soul, and health to the bones" (Pr 16:24); "The words of a wise man's mouth are gracious" (Ec 10:12).
Boldness and Plain Speech
The other side of grace-seasoned speech is plainness. Paul names the apostolic posture: "Having therefore such a hope, we use great boldness of speech" (2Co 3:12). Truth-telling does not always make friends: "So then have I become your⁺ enemy, by telling you⁺ the truth?" (Ga 4:16). The wisdom literature already prized this — "How forcible are words of uprightness!" (Job 6:25); "The words of the wise heard in quiet are better than the cry of him who rules among fools" (Ec 9:17); "The words of the wise are as goads; and as nails well fastened are [the words of] the masters of assemblies" (Ec 12:11). The wise word is forcible without being loud, and plain without being cruel.
The character of conversation, in the end, is treated by scripture as a reliable signal of the heart that drives it. Words are weighed; they reveal; they build or burn; they are remembered before God. The discipline of speech is not a peripheral virtue but one of the standing tests of whether a person fears Yahweh.