Keep your behavior excellent among the [unsaved] Gentiles [conduct yourself honorably, with graciousness and integrity], so that for whatever reason they may slander you as evildoers, yet by observing your good deeds they may [instead come to] glorify God in the day of visitation [when He looks upon them with mercy].

And see to it that your conscience is entirely clear, so that every time you are slandered or falsely accused, those who attack or disparage your good behavior in Christ will be shamed [by their own words].