1 Samuel 18:4

And Jonathan stripped himself of the robe that [was] upon him, and gave it to David, and his garments, even to his sword, and to his bow, and to his girdle.

Ver. 4. And Jonathan stripped himself of the robe … and gave it to David, &c.] As a pledge of his dear love, and for a symbol, that now all things were common betwixt them, as it useth to be betwixt dearest friends, and that he would have David looked upon as his Alter Ego.

And his garments, even to his sword, &c.] Love is liberal, and can part with anything. Christ sealed up his great love to his elect by bestowing himself and all his benefits upon them. Neither was it, perhaps, without mystery, saith one, that Saul's clothes fitted not David, but Jonathan's fitted him; and these he is as glad to wear, as he was to be disburdened of the other.