Finally, brothers, we ask and encourage you in the Lord Jesus to live in a way that is pleasing to God, just as you have received from us. This is how you already live, so you should do so all the more.
KJV
Furthermore then we beseech you, brethren, and exhort [you] by the Lord Jesus, that as ye have received of us how ye ought to walk and to please God, [so] ye would abound more and more.
ASV
Finally then, brethren, we beseech and exhort you in the Lord Jesus, that, as ye received of us how ye ought to walk and to please God, even as ye do walk,—that ye abound more and more.