1 Samuel 21:7

Detained before the Lord - Probably fulfilling some vow to the Lord, and therefore for a time resident at the tabernacle.

And his name was Doeg - From 1 Samuel 22:9 ; we learn that this man betrayed David's secret to Saul, which caused him to destroy the city, and slay eighty-five priests. We learn from its title that the fifty-second Psalm was made on this occasion; but titles are not to be implicitly trusted.