1 Samuel 20:1-4

Then David fled from Naioth in Ramah, and he came and said to Jonathan, “What have I done? What is my guilt? And what is my sin before your father, that he is seeking my life?”

He said to him, “Far from it, you shall not die! Behold, my father does nothing either great or small without informing me. So why would my father hide this thing from me? It is not so!”

Yet David vowed again, saying, “Your father is well aware that I have found favor in your sight, and he has said, ‘Jonathan is not to know this, otherwise he will be worried.’ But indeed as the Lord lives and as your soul lives, there is just a step between me and death.”

Then Jonathan said to David, “Whatever you say, I will do for you.”