1 Samuel 20:12

And Jonathan said to David, “The Lord, the God of Israel, be witness! When I have sounded out my father, about this time tomorrow, or the third day, behold, if he is well disposed toward David, shall I not then send and disclose it to you?

“By the Lord, the God of Israel, I will sound out my father by this time tomorrow or the next day. If I find out that he is favorable toward you, will I not send for you and tell you?

Then Jonathan told David, “I promise by the Lord, the God of Israel, that by this time tomorrow, or the next day at the latest, I will talk to my father and let you know at once how he feels about you. If he speaks favorably about you, I will let you know.

Then Jonathan said to David, “Yahweh the God of Israel is my witness that I will question my father by this time the day after tomorrow. And look, if he is well disposed toward you, will I not send word to you and disclose it to you?

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;