Understanding the great gift exchange goes to the very heart of our relationship with God, to Grace. We have nothing to give God except what he's given us. But that is enough. There can be no payment, obligation. But there can be learning, imitation, love, delight.
God is the self-less giver who calls us to know the joy of self-giving love. Love even for enemies. Delight in serving friends. Learning to walk in love as Christ loved us .