JMNT(i)
18 The domestics (house servants or slaves; members of a household), those habitually being subordinated (being humbly aligned and subjected for support) by (or: to; for) the owners (masters): [conduct yourselves] in all fear and respect – not only to the good and lenient (reasonable, suitable; equitable; gentle; considerate) ones, but also to the crooked folks –
19 for this [is] grace: if through [the] conscience, which is God, (or: through awareness pertaining to God; or: by means of a joint-knowing with God; or: because of consciousness of God), someone is continuing to bear and hold up under distress or pains (griefs; sorrows; anxieties; sufferings), continuously experiencing it wrongfully (unjustly; contrarily, in regard to fairness and right relationship; undeservedly)!
20 For what sort of credible report (honorable rumor; credit; fame; praiseworthy reputation) [is it] if, being ones habitually doing what is wrong (failing to hit the target; sinning) and being repeatedly beaten and struck with a fist [p72 & other MSS: repeatedly lopped-off and pruned], you folks will continue [p72 & other MSS read: you are constantly] remaining under and enduring [it]? But to the contrary, if while habitually practicing virtue (doing good; constructing excellence) and [at the same time] repeatedly experiencing such bad treatment (or: continually suffering) you will continue [p72 reads: you are constantly] humbly remaining under, enduring and supporting [it], this [is] grace at the side of (or: from beside; = in the presence of) God,
21 for into this you are called (or: were invited), because Christ also experienced [this] (or: suffered) over you folks (or: for your sakes), leaving continuously below (or: behind) in you (or: with and for you) an underwriting (a writing under which you are to write or copy; hence: a pattern; a model) to the end that you could (or: would) follow-on in the footprints of Him