Hence, when Paul says that "we are children of God," he is building upon the foundations of his teaching in Romans 7. Paul had identified with his spiritual "I" that is his Christ-identity. We are sons of God, not on account of our identity as the carnal fruit of Adam's seed, but as a consequence of the holy seed of the Last Adam, who has begotten us by the Spirit of God.

This is what makes us sons of God. The Last Adam has successfully done the work that the first Adam was called to do—but failed. Though the first Adam was called to be a "son of God" (Luke 3:38), he became "the man of sin" in need of a redeemer. The process of redemption, salvation, justification, and reconciliation is focused entirely upon the success of the Last Adam.

This is the basis of the Sonship message. No other religion has this truth, because coming into Sonship and the huiothesia can only be accomplished through Jesus Christ. It is what makes Christianity unique.