What does the Bible say about friends?

What does the Bible say about friends?

Proverbs 27:17
As iron sharpens iron, So a man sharpens the countenance of his friend.

Make sure you are equally yoked with your closest friends. We by no means should shut unbelievers out of our lives. Quite the opposite. We are called to preach the Word (2 Timothy 4:2 Preach the word! Be ready in season and out of season. Convince, rebuke, exhort, with all longsuffering and teaching.) However, we need to make sure we are around the unbelievers specifically to minister to them and that those we have as our close friends we are equally yoked with. (1 Corinthians 15:33 Do not be deceived: “Evil company corrupts good habits.”)