1 Peter 3:9

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

Read 1 Peter 3:9 Using Other Translations

Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.
Do not repay evil for evil or reviling for reviling, but on the contrary, bless, for to this you were called, that you may obtain a blessing.
Don’t repay evil for evil. Don’t retaliate with insults when people insult you. Instead, pay them back with a blessing. That is what God has called you to do, and he will grant you his blessing.