Abram is afraid of reprisals after his unexpected victories, which leads him back to the promises that God made him. He is unsure of whether God will come through for him, like we often are, and questions the promises that God has made him. We can learn from how he asks God from a position of faith. God kindly shows Abram how his promises are more than he had previously assumed, and then makes a covenant with him in a bizarre ancient near eastern ritual. Except that, unexpectedly, God plays both his own and Abram's role. We see how this points us toward Jesus' abundant grace for us, and how everything we are given by God is an unearned gift.