Romans 16:17 in the King James Version
Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.
Context
16 Greet one another with a holy kiss. The assemblies of Christ greet you.
17 Now I beg you, brothers, look out for those who are causing the divisions and occasions of stumbling, contrary to the doctrine which you learned, and turn away from them.
18 For those who are such don’t serve our Lord Jesus Christ, but their own belly; and by their smooth and flattering speech they deceive the hearts of the innocent.