By Silvanus, our faithful brother, as I accounthim, I have written unto you briefly, exhorting, and testifying that this is the true grace of God: stand ye fast therein.

Through Silvanus, whom I regard as a faithful brother, I have written to you briefly, encouraging you and testifying that this is the true grace of God. Stand firm in it.

Through Silvanus, to you the faithful brother, as I reckon, through few words I did write, exhorting and testifying this to be the true grace of God in which ye have stood.

By Silvanus, the faithful brother, as I suppose, I have written to you briefly; exhorting and testifying that this is [the] true grace ofGod in which ye stand.