1 Peter 2:15

15 For such is the will of God that by doing right you may silence the ignorance of foolish men.

There seems to always foolish men (and women) around—those who are always thinking of reasons to criticize believers. These days are filled with foolish people who will put you down just for being a Christian, not for any good thing you do. But hopefully our good deeds will make some impact on even fools. Our prayers will help.