Galatians 4:8

5 that he might redeem them that were under the law, that we might receive the adoption of sons.

6 And because ye are sons, God sent forth the Spirit of his Son into our hearts, crying, Abba, Father.

7 So that thou art no longer a bondservant, but a son; and if a son, then an heir through God.

8 Howbeit at that time, not knowing God, ye were in bondage to them that by nature are no gods:

9 but now that ye have come to know God, or rather to be known by God, how turn ye back again to the weak and beggarly rudiments, whereunto ye desire to be in bondage over again?

10 Ye observe days, and months, and seasons, and years.

11 I am afraid of you, lest by any means I have bestowed labor upon you in vain.