1 Samuel 20:38 (KJV)

And Saul cast a javelin at him to smite him: whereby Jonathan knew that it was determined of his father to slay David.

So Jonathan arose from the table in fierce anger, and did eat no meat the second day of the month: for he was grieved for David, because his father had done him shame.

And it came to pass in the morning, that Jonathan went out into the field at the time appointed with David, and a little lad with him.

And he said unto his lad, Run, find out now the arrows which I shoot. And as the lad ran, he shot an arrow beyond him.

And when the lad was come to the place of the arrow which Jonathan had shot, Jonathan cried after the lad, and said, Is not the arrow beyond thee?

But the lad knew not any thing: only Jonathan and David knew the matter.

And Jonathan gave his artillery unto his lad, and said unto him, Go, carry them to the city.

And as soon as the lad was gone, David arose out of a place toward the south, and fell on his face to the ground, and bowed himself three times: and they kissed one another, and wept one with another, until David exceeded.

And Jonathan said to David, Go in peace, forasmuch as we have sworn both of us in the name of the LORD, saying, The LORD be between me and thee, and between my seed and thy seed for ever. And he arose and departed: and Jonathan went into the city.