15 For it is God’s will that by doing good you should silence the ignorant talk of foolish people.

Read 1 Peter 2:15 Using Other Translations

For so is the will of God, that with well doing ye may put to silence the ignorance of foolish men:
For this is the will of God, that by doing good you should put to silence the ignorance of foolish people.
It is God’s will that your honorable lives should silence those ignorant people who make foolish accusations against you.