Galatians 4 New King James Version (NKJV)

4 Now I say that the heir, as long as he is a child, does not differ at all from a slave, though he is master of all, 2 but is under guardians and stewards until the time appointed by the father. 3 Even so we, when we were children, were in bondage under the elements of the world. 4 But when the fullness of the time had come, God sent forth His Son, born[a] of a woman, born under the law, 5 to redeem those who were under the law, that we might receive the adoption as sons.
6 And because you are sons, God has sent forth the Spirit of His Son into your hearts, crying out, [b]“Abba, Father!” 7 Therefore you are no longer a slave but a son, and if a son, then an heir [c]of God [d]through Christ.