6. Therefore, because you are sons, God has sent the Spirit of his Son into your hearts, crying out: "Abba, Father."
7. And so now he is not a servant, but a son. But if he is a son, then he is also an heir, through God.
8. But then, certainly, while ignorant of God, you served those who, by nature, are not gods.
9. But now, since you have known God, or rather, since you have been known by God: how can you turn away again, to weak and destitute influences, which you desire to serve anew?
10. You serve the days, and months, and times, and years.
11. I am afraid for you, lest perhaps I may have labored in vain among you.