4 What I am saying is that as long as an heir is under age, he is no different from a slave, although he owns the whole estate. 2 The heir is subject to guardians and trustees until the time set by his father. 3 So also, when we were under age, we were in slavery under the elemental spiritual forces of the world. 4 But when the set time had fully come, God sent his Son, born of a woman, born under the law, 5 to redeem those under the law, that we might receive adoption to sonship. 6 Because you are his sons, God sent the Spirit of his Son into our hearts, the Spirit who calls out, ‘Abba, Father.’ 7 So you are no longer a slave, but God’s child; and since you are his child, God has made you also an heir.
Paul’s concern for the Galatians
8 Formerly, when you did not know God, you were slaves to those who by nature are not gods. 9 But now that you know God – or rather are known by God – how is it that you are turning back to those weak and miserable forces? Do you wish to be enslaved by them all over again?