17So this I say, and solemnly affirm together with the Lord [as in His presence], that you must no longer live as the [unbelieving] Gentiles live, in the futility of their minds [and in the foolishness and emptiness of their souls],
17Here is what I’m telling you. I am speaking for the Lord as I warn you. You must no longer live as the Gentiles do. Their thoughts don’t have any purpose.
17So I say this to you. I am sure that I have the Lord's authority to say it. You must not live any longer like the Gentile people who do not know God. They do whatever their silly ideas teach them to do.