Doeg
Doeg the Edomite is the chief of Saul's herdsmen who reports David's visit to the priests at Nob and then carries out Saul's order to kill them. He stands at the center of one of the bleakest episodes in Saul's reign and is the named subject of the superscription to Psalm 52.
At Nob, Detained Before Yahweh
Doeg first appears at the sanctuary of Nob on the day David comes to Ahimelech for bread and a sword. The setting is the priestly town: "Then David came to Nob to Ahimelech the priest: and Ahimelech came to meet David trembling, and said to him, Why are you alone, and no man with you?" (1Sa 21:1). Doeg is named in the same scene, his presence noted as a liturgical detail rather than a chance encounter: "Now a certain man of the slaves of Saul was there that day, detained before Yahweh; and his name was Doeg the Edomite, the chiefest of the herdsmen who belonged to Saul" (1Sa 21:7).
The Informer
When Saul afterward demands to know who has helped David, Doeg breaks the silence of Saul's other slaves: "Then Doeg the Edomite, who stood by the slaves of Saul, answered and said, I saw the son of Jesse coming to Nob, to Ahimelech the son of Ahitub" (1Sa 22:9). On that report Saul summons Ahimelech and his father's house and pronounces sentence: "And the king said, You will surely die, Ahimelech, you, and all your father's house" (1Sa 22:16).
The Slaughter at Nob
When Saul's own slaves refuse to lay hands on the priests, Doeg carries out the king's order alone: "And the king said to Doeg, You turn, and fall on the priests. And Doeg the Edomite turned, and he fell on the priests, and he slew on that day eighty-five persons who wore a linen ephod" (1Sa 22:18). The destruction extends from the priests themselves to the whole town: "And Nob, the city of the priests, he struck with the edge of the sword, both men and women, children and sucklings, and oxen and donkeys and sheep, with the edge of the sword" (1Sa 22:19).
The Psalm Against Him
Psalm 52 is named in its superscription as David's response to the report Doeg brought to Saul: "For the Chief Musician. Maschil of David; when Doeg the Edomite came and told Saul, and said to him, David has come to the house of Ahimelech" (Ps 52:1). The body of the psalm addresses an unnamed "mighty man" whose tongue is a weapon — "Why do you boast yourself in mischief, O mighty man? The loving-kindness of God [endures] continually. Your tongue devises much wickedness, Like a sharp razor, working deceitfully. You love evil more than good, And lying rather than to speak righteousness. Selah. You love all devouring words, O you deceitful tongue" (Ps 52:1-4) — and pronounces a counter-sentence on him: "God will likewise break you down forever; He will take you up, and pluck you out of your tent, And root you out of the land of the living. Selah" (Ps 52:5). The psalm closes with the contrast: "But as for me, I am like a green olive tree in the house of God: I trust in the loving-kindness of God forever and ever" (Ps 52:8).