1 Samuel 23:6

“And it came to pass, when Abiathar the son of Ahimelech fled to David to Keilah, etc.] Either when he was there, or near the place: [that] he came down with an ephod in his hand; not with a linen ephod on his back, which the priests in common wore, but the ephod with the Urim and Thummim in his hand, which was peculiar to the high priest; and his father the high priest being dead, it belonged to him, and therefore he took care to bring it with him; though the words may be literally rendered, “the ephod came down in his hand” f461, as it were by chance, and not with design; and so some Jewish interpreters f462 understand it, that in his fright and flight, among his garments and other things…”

“an ephod--in which was the Urim and Thummim (Exo 28:30). It had, probably, been committed to his care, while Ahimelech and the other priests repaired to Gibeah, in obedience to the summons of Saul.”

“Ephod - With the Ephod, the high - priest's Ephod, wherein were the Urim and the Thummim, which when Ahimelech and the rest of the priests went to Saul, were probably left in his hand. This gave him the opportunity both of escaping, whilst Doeg the butcher was killing his brethren, and of bringing away the Ephod, which Saul now was justly deprived of. 1 Kings (1 Samuel) 23:11”

“23:6 the ephod: Saul had slain eighty-five priests who were wearing their ephods (22:18; see study note on 2:18), but the priest who escaped had the high priest’s ephod, which contained the Urim and Thummim.”

“when Abiathar: Sa1 22:20 an ephod: Sa1 14:3, Sa1 14:18, Sa1 14:36, Sa1 14:37; Exo 28:30, Exo 28:31 1 Kings (1 Samuel) 23:7”