1 Samuel 20:40-41
40-41Jonathan gave his quiver and bow to the boy and sent him back to town. After the servant was gone, David got up from his hiding place beside the boulder, then fell on his face to the ground—three times prostrating himself! And then they kissed one another and wept, friend over friend, David weeping especially hard.
42Jonathan said, "Go in peace! The two of us have vowed friendship in God's name, saying, 'God will be the bond between me and you, and between my children and your children forever!'"