Galatians 4:1-7 | Sons and Heirs

The son that is the heir, as long as he is a child, is no different from a slave though he is the owner of everything. Yet he is under guardians and managers until a date set by his father. When the fulness of time had come, God sent forth his Son so that we might receive adoption as sons. You are no longer a slave, but a son and then an heir through God.