Have nothing to do with foolish, ignorant controversies; you know that they breed quarrels. And the Lord's servant must not be quarrelsome but kind to everyone, able to teach, patiently enduring evil, correcting his opponents with gentleness. God may perhaps grant them repentance leading to a knowledge of the truth, and they may come to their senses and escape from the snare of the devil, after being captured by him to do his will.
Proverbs 9:7-9 ESV / 7 helpful votes
Whoever corrects a scoffer gets himself abuse, and he who reproves a wicked man incurs injury. Do not reprove a scoffer, or he will hate you; reprove a wise man, and he will love you. Give instruction to a wise man, and he will be still wiser; teach a righteous man, and he will increase in learning.