Matthew Poole and continuators on 1 Samuel 21:7

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.)

Not by force from others, but by his own choice; he fixed his abode there for that day; either because it was the Sabbath-day; on which he might not proceed in his Journey, or other business: or for the discharge of some Vow: or to beg direction, and help from God in some great business.

i. e. At the Tabernacle.

Either, 1. by his Habitation, and Conversation among those People for some considerable time, as, for the same reason Uriah is called the Hittite; and Obed-Edom the Gittite: Or rather, 2. By his Birth, and Nation: but he was Proselyted to the Iewish Religion: or took it up for Sinister Ends, being advanced, as here we read, to a place of Trust and Preferment, possibly upon this occasion.

Marginal references: Psal. 52. title.