And I will very gladly spend and be spent for you; though the more abundantly I love you, the less I be loved.
I will very gladly spend - all I have.
Be spent - all that I am; 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. Love to the unwilling only increases distaste: true only of some Corinthians. Love him as a true friend who seeks your good more than your good will.