King James Version
Having a good conscience; that, whereas they speak evil of you, as of evildoers, they may be ashamed that falsely accuse your good conversation in Christ.New International Version
keeping a clear conscience, so that those who speak maliciously against your good behavior in Christ may be ashamed of their slander.Catholic Public Domain Version
But do so with meekness and fear, having a good conscience, so that, in whatever matter they may slander you, they shall be confounded, since they falsely accuse your good behavior in Christ