English Standard Version
Now this I say and testify in the Lord, that you must no longer walk as the Gentiles do, in the futility of their minds.

American Standard Version
This I say therefore, and testify in the Lord, that ye no longer walk as the Gentiles also walk, in the vanity of their mind,

Berean Study Bible
So I tell you this, and insist on it in the Lord, that you must no longer walk as the Gentiles do, in the futility of their thinking.

Douay-Rheims Bible
This then I say and testify in the Lord: That henceforward you walk not as also the Gentiles walk in the vanity of their mind,

English Revised Version
This I say therefore, and testify in the Lord, that ye no longer walk as the Gentiles also walk, in the vanity of their mind,

King James Bible
This I say therefore, and testify in the Lord, that ye henceforth walk not as other Gentiles walk, in the vanity of their mind,

World English Bible
This I say therefore, and testify in the Lord, that you no longer walk as the rest of the Gentiles also walk, in the futility of their mind,

Young's Literal Translation
This, then, I say, and I testify in the Lord; ye are no more to walk, as also the other nations walk, in the vanity of their mind,

Ephesians 4:17 Additional Translations ...