I Samuel 20:41-42

As soon as the lad had gone, David arose from a place toward the south, fell on his face to the ground, and bowed down three times. And they kissed one another; and they wept together, but David more so. Then Jonathan said to David, “Go in peace, since we have both sworn in the name of the LORD, saying, ‘May the LORD be between you and me, and between your descendants and my descendants, forever.’ ” So he arose and departed, and Jonathan went into the city.