Infidelity

In the older topical vocabulary, infidelity names not the breach of a marriage vow but the breach of trust toward God: the disposition that denies the deity, scoffs at his messengers, refuses to receive his witness, and strives against the Maker. The UPDV gathers this stance under several overlapping registers — the fool who says there is no God, the wicked who deny Yahweh, the mocker who sports against the prophets, the world that will not believe though many signs are done before it, and the heart that finally falls away from the living God. The reader meets the disposition in psalmist, prophet, gospel, and epistle alike. (For marital unfaithfulness, see Adultery.)

The Fool's Premise: There Is No God

The classical voice of infidelity in the UPDV is the fool of the Psalter, who reaches a conclusion no demonstration can support and lives as if it were proven. "The fool has said in his heart, There is no God. They are corrupt, they have done disgusting works; There is none who does good" (Ps 14:1). The same heart is sketched at Ps 10:4, where pride underwrites denial: "The wicked, in the pride of his countenance, [says], He will not require [it]. All his thoughts are, There is no God." And at Ps 36:1 the diagnosis is moral, not metaphysical: "The transgression of the wicked says inside his heart, There is no fear of God before his eyes." The proverb of Agur sees the same disposition lurking in prosperity itself: "Or else I will be full, and deny [you], and say, Who is Yahweh?" (Pr 30:9).

The prophets put the same speech in the mouth of a generation. "They have denied [the Speech of] Yahweh, and said, It is not he; neither will evil come upon us; neither will we see sword nor famine" (Je 5:12). What the psalmist treated as folly the prophet treats as imminent ruin. The New Testament transposes the denial onto the person of Christ: "Who is the liar but he who denies that Jesus is the Christ? This is the antichrist, [even] he who denies the Father and the Son" (1 Jn 2:22). Infidelity in this register is not silence about God — it is a counter-confession.

The Materialist Variant

A specific form of infidelity surfaces inside the church at Corinth: not the wholesale denial of God, but the surgical removal of the resurrection. Paul confronts it directly: "Now if Christ is preached that he has been raised from the dead, how do some say among you⁺ that there is no resurrection of the dead?" (1 Co 15:12). The denial of bodily resurrection is treated by Paul as continuous with the broader infidel posture, because it dismantles the gospel from inside.

Revelation Refused

Where the fool says there is no God, the more common biblical pattern is that God speaks and is not believed. Lot warned his sons-in-law that Yahweh would destroy the city, "But he seemed to his sons-in-law as one who mocked" (Ge 19:14). Israel in the wilderness "spoke against God; They said, Can God prepare a table in the wilderness?" (Ps 78:19). Moses' valedictory anticipates the same posture in the next generation: "they are a very perverse generation, Sons in whom is no faithfulness" (De 32:20).

The pattern intensifies in the prophets' reception. Isaiah's servant song opens with the cry, "Who has believed our message? And to whom has the arm of Yahweh been revealed?" (Is 53:1). Jesus reports the identical experience: "Truly, truly, I say to you, We speak that which we know, and bear witness of that which we have seen; and you⁺ do not receive our witness" (Jn 3:11). And John records the verdict on Christ's own ministry: "But though he had done so many signs before them, yet they didn't believe on him" (Jn 12:37). At his trial the same disposition speaks: "If I tell you⁺, you⁺ will not believe" (Lu 22:67). To Nathanael's countrymen Jesus says, "Except you⁺ see signs and wonders, you⁺ will in no way believe" (Jn 4:48); to his opponents, "And you⁺ do not have his speech staying in you⁺: for whom he sent, him you⁺ do not believe" (Jn 5:38); and again, "But because I say the truth, you⁺ don't believe me" (Jn 8:45). The diagnostic deepens at Jn 10:26 — "But you⁺ do not believe, because you⁺ are not of my sheep" — where unbelief is no longer a verdict on the evidence but a verdict on the unbeliever.

The Scoffer's Posture

Alongside cold denial the UPDV traces a hotter form of infidelity: the mocker. The chronicler reads Jerusalem's fall through this lens — "they mocked the messengers of God, and despised his words, and scoffed at his prophets, until the wrath of Yahweh arose against his people, until there was no remedy" (2 Ch 36:16). Isaiah indicts the same temper: "Against whom do you⁺ sport yourselves? Against whom do you⁺ make a wide mouth, and put out the tongue? Are you⁺ not children of transgression, a seed of falsehood" (Is 57:4). Wisdom links scoffing at the creature to scoffing at the Creator: "Whoever mocks the poor reproaches his Maker" (Pr 17:5). And the apostles read their own age the same way: "in the last time there will be mockers, walking after their own ungodly desires" (Jud 1:18).

Striving with the Maker

Infidelity sometimes presents itself as argument rather than mockery — the creature taking up a forensic stance against the Creator. The book of Job rebukes that posture: "Why do you strive against him Because he doesn't give account of any of his matters?" (Job 33:13). Isaiah pronounces woe on it: "Woe to him who strives with his Maker! A potsherd among the potsherds of the earth! Will the clay say to him who fashions it, What do you make? Or your work, He has no hands?" (Is 45:9). Paul folds the same image into his answer to objectors: "On the contrary, O man, who are you that reply against God? Will the thing formed say to him who formed it, Why did you make me thus?" (Ro 9:20). The infidel question, treated structurally, is the clay's question to the potter.

Sirach: Woe to the Faint Heart

The wisdom of Ben Sira gives infidelity its sharpest pastoral diagnosis: "Woe to the faint heart; because it does not believe, Therefore it will not be sheltered" (Sir 2:13). The disposition that will not trust forfeits the only place of shelter.

The Sin of Unbelief and Its Judgment

The New Testament treats unbelief not as an intellectual misfortune but as a judicial offense. "He who believes on him is not judged: but he who does not believe has been judged already, because he has not believed on the name of the only begotten Son of God" (Jn 3:18). The wrath that abides is no future threat: "He who believes on the Son has eternal life; but he who does not obey the Son will not see life, but the wrath of God stays on him" (Jn 3:36). And Jesus himself anchors the final verdict in unbelief: "I said therefore to you⁺, that you⁺ will die in your⁺ sins: for except you⁺ believe that I am [he], you⁺ will die in your⁺ sins" (Jn 8:24).

The epistles take up the same warning. Hebrews names the danger to the church itself: "Take heed, brothers, lest perhaps there will be in any one of you⁺ an evil heart of unbelief, in falling away from the living God" (He 3:12). Jude appeals to history: "Jesus having saved a people out of the land of Egypt, afterward destroyed those who did not believe" (Jud 1:5). Paul reads Israel's branches by the same rule — "by their unbelief they were broken off, and you stand by your faith. Don't be highminded, but fear" (Ro 11:20) — and warns the Thessalonians "that all who did not believe the truth, but had pleasure in unrighteousness, would be judged" (2 Th 2:12). The judgment scene in the Apocalypse places the unbelieving in the first rank of the lost: "But for the fearful, and unbelieving, and those who have become disgusting, and murderers, and whores, and sorcerers, and idolaters, and all liars, their part [will be] in the lake that burns with fire and brimstone; which is the second death" (Re 21:8). The unfaithful slave receives the parable's matching sentence: the master "will cut him apart, and appoint his portion with the unfaithful" (Lu 12:46).

Unbelief Among the Disciples

The UPDV does not pretend that infidelity is only the world's posture. Mark records Christ's rebuke to the Twelve in the storm: "Why are you⁺ fearful? Have you⁺ not yet faith?" (Mr 4:40). Paul concedes flatly that even within Christian witness "all do not have faith" (2 Th 3:2). The pastoral note is that unbelief is the besetting condition the gospel labors against, even among those nearest to it.

The Reprobate Mind

At its end the trajectory of infidelity is given its theological description in Romans. The disposition that will not have God in its knowledge is met by a corresponding judgment: "And even as they did not approve to have God in [their] knowledge, God delivered them up to a disapproved mind, to do those things which are not fitting" (Ro 1:28). Refusal of God turns out to be the seed of the moral disorder that follows. The infidel does not, in the end, lose only the truth about God — he loses the mind that could recognize it.