not rendering evil for evil, or reviling for reviling; but contrariwise blessing; for hereunto were ye called, that ye should inherit a blessing.

Do not repay evil with evil or insult with insult, but with blessing, because to this you were called so that you may inherit a blessing.

not giving back evil for evil, or railing for railing, and on the contrary, blessing, having known that to this ye were called, that a blessing ye may inherit;

not rendering evil for evil, or railing for railing; but on the contrary, blessing [others], because ye have been called to this, that ye should inherit blessing.