The truth is, we are all either an Ishmael or an Isaac. We are either a child of slavery or a child of freedom. How we relate to God’s word determines which we are. If we, like Paul, hold to the gospel message as God himself first proclaimed it in the person of Jesus Christ, we are Isaac. But if we, like the false teachers, believe the gospel needs our works to gain full righteousness before God, we are Ishmael.