David fled from Naioth in Ramah, and came and said before Jonathan, "What have I done? What is my iniquity?" and "What is my sin before your father, that he seeks my life?"
There are several oaths and strong affirmations in this chapter (1 Samuel 20:3; 1 Samuel 20:12-13; 1 Samuel 20:16-17; 1 Samuel 20:23; 1 Samuel 20:42). The one that David made in 1 Samuel 20:3 is very strong. He believed correctly that he was in mortal danger, and he tried to make Jonathan see this. Jonathan was open to anything David wanted to suggest to prove his point (1 Samuel 20:4).