Albert Barnes Commentary 1 Samuel 20:1

"And David fled from Naioth in Ramah, and came and said before Jonathan, What have I done? what is mine iniquity? and what is my sin before thy father, that he seeketh my life?" — 1 Samuel 20:1 (ASV)

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 putting himself in Jonathan’s power. Perhaps something passed between Samuel and Saul on the subject, since it appears from 1 Samuel 20:5, 25, and 27 that Saul expected David at the feast of the new moon.