In the past you did not know God, and so you were slaves of beings who are not gods.
But now that you know God - or, I should say, now that God knows you - how is it that you want to turn back to those weak and pitiful ruling spirits? Why do you want to become their slaves all over again?
You pay special attention to certain days, months, seasons, and years.
I am worried about you! Can it be that all my work for you has been for nothing?