1 Samuel 18

1 And it came to pass, when he had made an end of speaking unto Saul, that, the soul of Jonathan, was knit with, the soul of David, so that Jonathan loved him, as his own soul.

2 And Saul took him, that day,and suffered him not to return unto the house of his father.

3 And Jonathan and David solemnised a covenant,because he loved him as his own soul.