1 Samuel 20:4 in the King James Version
Then said Jonathan unto David, Whatsoever thy soul desireth, I will even do it for thee.
Context
3 David swore moreover, and said, “Your father knows well that I have found favor in your eyes; and he says, ‘Don’t let Jonathan know this, lest he be grieved;’ but truly as the LORD lives, and as your soul lives, there is but a step between me and death.”
4 Then Jonathan said to David, “Whatever your soul desires, I will even do it for you.”
5 David said to Jonathan, “Behold, tomorrow is the new moon, and I should not fail to dine with the king; but let me go, that I may hide myself in the field to the third day at evening.