Galatians 4:8

5 That he might make them free who were under the law, and that we might be given the place of sons.

6 And because you are sons, God has sent out the Spirit of his Son into our hearts, saying, Abba, Father.

7 So that you are no longer a servant, but a son; and if a son, then the heritage of God is yours.

8 But at that time, having no knowledge of God, you were servants to those who by right are no gods:

9 But now that you have come to have knowledge of God, or more truly, God has knowledge of you, how is it that you go back again to the poor and feeble first things, desiring to be servants to them again?

10 You keep days, and months, and fixed times, and years.

11 I am in fear of you, that I may have been working for you to no purpose.