9 When David knew that Saul plotted evil against him, he said to Abiathar the priest, "Bring the ephod here." 10 Then David said, "O Lord God of Israel, Your servant has certainly heard that Saul seeks to come to Keilah to destroy the city for my sake. 11 Will the men of Keilah deliver me into his hand? Will Saul come down, as Your servant has heard? O Lord God of Israel, I pray, tell Your servant." And the Lord said, "He will come down." 12 Then David said, "Will the men of Keilah deliver me and my men into the hand of Saul?" And the Lord said, "They will deliver you." 13 So David and his men, about six hundred, arose and departed from Keilah and went wherever they could go. Then it was told Saul that David had escaped from Keilah; so he halted the expedition.
Matthew Henry's Commentary on 1 Samuel 23:9-13
Commentary on 1 Samuel 23:7-13
(Read 1 Samuel 23:7-13)
Well might David complain of his enemies, that they rewarded him evil for good, and that for his love they were his adversaries. Christ was used thus basely. David applied to his great Protector for direction. No sooner was the ephod brought him than he made use of it. We have the Scriptures in our hands, let us take advice from them in doubtful cases. Say, Bring hither the Bible. David's address to God is very solemn, also very particular. God allows us to be so in our addresses to him; Lord, direct me in this matter, about which I am now at a loss. God knows not only what will be, but what would be, if it were not hindered; therefore he knows how to deliver the godly out of temptation, and how to render to every man according to his works.