15. I will … spend—all I have.
be spent—all that I am. This is more than even natural parents do. They "lay up treasures for their children." But I spend not merely my treasures, but myself.
for you—Greek, "for your souls"; not for your mere bodies.
the less I be loved—Love rather descends than ascends [Bengel]. Love him as a true friend who seeks your good more than your good will.