"Greater love has no one than this, that he lay down his life for his friends." (John 15:13)
"Two are better than one, because they have a good return for their work: If one falls down, his friend can help him up. But pity the man who falls and has no one to help him up!" (Ecclesiastes 4:9-10)
"Do not be misled: "Bad company corrupts good character."" (1 Corinthians 15:33)
"A righteous man is cautious in friendship, but the way of the wicked leads them astray." (Proverb 12:26)
"He who walks with the wise grows wise, but a companion of fools suffers harm." (Proverb 13:20)