Some time later: Abraham had sent Ishmael away and settled in the land. Then God tested Abraham’s faith by telling him to give up Isaac. This challenged Abraham's logic and understanding of God.
Would he still obey when God seemed to oppose him and the covenant? Would he hold onto the boy or surrender him to God (see Exodus 13:11–13)? Did he believe that God would still keep his promise and bless the world through Abraham’s descendants?