Doeg in the Bible

Now a certain man of the servants of Saul was there that day, detained before the LORD; and his name was Doeg, an Edomite, the chief of the herdmen that belonged to Saul.

Then answered Doeg the Edomite, who was set over the servants of Saul, and said, I saw the son of Jesse coming to Nob, to Ahimelech the son of Ahitub.

And the king said to Doeg, Turn thou, and fall upon the priests. And Doeg the Edomite turned, and he fell upon the priests, and slew on that day eighty and five persons that wore a linen ephod.

And David said to Abiathar, I knew that day, when Doeg the Edomite was there, that he would surely tell Saul: I have occasioned the death of all the persons of thy father's house.

Then you will delight in the sacrifices of righteousness, in burnt offerings and in whole burnt offerings. Then they will offer bulls on your altar. For the Chief Musician. A contemplation by David, when Doeg the Edomite came and told Saul, "David has come to Abimelech's house."

{To the chief Musician, Maschil, A Psalm of David, when Doeg the Edomite came and told Saul, and said unto him, David is come to the house of Ahimelech.} Why boastest thou thyself in mischief, O mighty man? the goodness of God endureth continually.