God called Abraham to leave his native country for a land that he would show him. When Abraham arrived in Canaan, God promised to give the land to him and his descendants, who would become the nation of Israel. The Lord promised that the whole world would be blessed through Abraham and his descendants. Abraham faced the ultimate test of faith when God commanded him to sacrifice his son Isaac. Because Abraham was willing to do so, God once again promised to bless him and to multiply his offspring. God spared Isaac from death by providing a substitute sacrifice, foreshadowing the substitutionary death of Christ on the cross. (Genesis 15:5–6)