Doeg, Chief herdsman to King Saul.

This is the incident where David has fled from Saul's jealous anger, to the High Priest Ahimelech, where David and his men are fed with the showbread, and David is given the sword of Goliath.

Doeg is mentioned in the Book of First Samuel, in chapters 21 and 22:

Doeg was at Nob and witnessed Ahimelech's service to David.

1Sa 21:7 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 chiefest of the herdmen that belonged to Saul.

Later, Saul asks about the whereabouts of David, and his herdsman speaks up:

1Sa 22:9 Then answered Doeg the Edomite, which was set over the servants of Saul, and said, I saw the son of Jesse coming to Nob, to Ahimelech the son of Ahitub.

Saul then summons the High Priest and his entire company, and in a rage, orders them all killed. Only Doeg is willing to do the deed.

David shows remorse:

1Sa 22:22 And David said unto Abiathar, I knew it 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.

Saul is then reported to have had killed 85 priests, while the city of Nob was put to the sword, men, women, children and animals.

Bible | Edom | Mass murderers | Shepherds | Tanakh people

Doeg