Albert Barnes' Notes on the Whole Bible - 1 Samuel 20:1
While Saul was under the constraining influence of the spirit of prophecy, David escaped from Naioth, and, probably by Samuel’s advice, returned to Saul’s court to commune with Jonathan. Nothing could be a better evidence of his innocence than thus putting himself in Jonathan’s power. Perhaps something passed between Samuel and Saul on the subject, since it appears from 1Sa 20:5, 1 Samuel 20:25, 1 Samuel 20:27, that Saul expected David at the feast of the new moon. read more
The Pulpit Commentary - 1 Samuel 20:8
Thou hast brought thy servant into a covenant of Jehovah with thee. As the friendship between Jonathan and David had been cemented by the invocation of the name of Jehovah, it was one firm and assured, and David might look not merely for one act of kindness, but for constant truth and help. It was, moreover, Jonathan's own doing; and yet, if there be in me, David says, iniquity , i.e. treason against Saul, if I have not been a faithful and true servant to him, but, on the contrary,... read more