Jonathan said to David, Yahweh, the God of Israel, [be witness]: when I have sounded my father about this time tomorrow, [or] the third day, behold, if there be good toward David, shall I not then send to you, and disclose it to you?
And David sware moreover, and said, Your father certainly knows that you and I are good friends; and so he said, Don't let Jonathan know this, lest he is grieved: but truly as the Lord liveth, and as thy soul liveth, there is but a step between me and death ( 1 Samuel 20:3 ).