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.
KJV
Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.
ASV
not rendering evil for evil, or reviling for reviling; but contrariwise blessing; for hereunto were ye called, that ye should inherit a blessing.