1 Samuel 20:12 in the World English Bible
Jonathan said to David, “By the LORD, the God of Israel, when I have sounded out my father about this time tomorrow, or the third day, behold, if there is good toward David, won’t I then send to you and disclose it to you?
Context
11 And Jonathan said unto David, Come, and let us go out into the field. And they went out both of them into the field.
12 And Jonathan said unto David, O LORD God of Israel, when I have sounded my father about to morrow any time, or the third day, and, behold, if there be good toward David, and I then send not unto thee, and shew it thee;
13 The LORD do so and much more to Jonathan: but if it please my father to do thee evil, then I will shew it thee, and send thee away, that thou mayest go in peace: and the LORD be with thee, as he hath been with my father.