Но тогда, не знав Бога, вы служили богам, которые в существе не боги.
Formerly, when you did not know God, you were slaves to those who by nature are not gods.
Formerly, when you did not know God, you were enslaved to those that by nature are not gods.
However at that time, when you did not know God, you were slaves to those which by nature are no gods.
Before you Gentiles knew God, you were slaves to so-called gods that do not even exist.
Howbeit then, when ye knew not God, ye did service unto them which by nature are no gods.
But then, indeed, when you did not know God, you served those which by nature are not gods.
But then indeed, not knowing God, ye were in bondage to those who by nature are not gods;