This doesn’t mean that Isaac saw the essence of God. No man can see God and live (see Exod. 33:20). Isaac saw a manifestationof God, as did Moses and others. The only way a man or woman can stand in the presence of God without being consumed by His holiness is to be pure of heart. That can come only by God’s mercy through the blood of the cross. All who are made pure in heart through faith in Jesus will see God (see Matt. 5:8).