1 Samuel 20:3-5

21st Century King James Version

³ And David swore moreover and said, “Thy father certainly knoweth that I have found grace in thine eyes, and he saith, ‘Let not Jonathan know this, lest he be grieved.’ But truly as the Lord liveth and as thy soul liveth, there is but a step between me and death.”

⁴ Then said Jonathan unto David, “Whatsoever thy soul desireth, I will even do it for thee.”

⁵ And David said unto Jonathan, “Behold, tomorrow is the new moon, and I should not fail to sit with the king at meat; but let me go, that I may hide myself in the field unto the third day at evening.