Then David said to Abiathar the priest, the son of Ahimelech, “Bring me the ephod.” So Abiathar brought it to him,
Solomon observes that the righteous is delivered out of trouble and the wicked cometh in his stead, that the just falleth seven times a-day and riseth again; so it was with David. Many were his troubles, but the Lord delivered him out of them all, and particularly out of this of which we have here an account. I.
Commenting on 1 Samuel 30:7-20
And David said to Abiathar the priest, Ahimelech's son,.... The son of Ahimelech, who was slain at Nob by the order of Saul, Sa1 22:19; and Abiathar his son, who fled to David with the ephod, on the death of his father, Sa1 22:20, was now high priest in his room; and who it seems was with David when he went with Achish, and returned...
Bring me hither the ephod - It seems as if David had put on the ephod, and inquired of the Lord for himself; but it is more likely that he caused Abiathar to do it.