1 Samuel 20:4

Overview - 1 Samuel 20
David consults with Jonathan for his safety.
11 Jonathan and David renew their covenant by oath.
18 Jonathan's token to David.
24 Saul, missing David, seeks to kill Jonathan.
35 Jonathan affectionately takes his leave of David.
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1 Samuel 20:4  (King James Version)
Then said Jonathan unto David, Whatsoever thy soul desireth, I will even do it for thee.

Whatsoever, etc or, Say what is thy mind, and I will do,
etc.* desireth
Hebrew speaketh, or thinketh.