Proverbs 18:24

John 15:13-15 NIV
Greater love has no one than this: to lay down one’s life for one’s friends. You are my friends if you do what I command. I no longer call you servants, because a servant does not know his master’s business. Instead, I have called you friends, for everything that I learned from my Father I have made known to you.

Proverbs 17:17 NIV
A friend loves at all times, and a brother is born for a time of adversity.

Proverbs 27:9 NIV
Perfume and incense bring joy to the heart, and the pleasantness of a friend springs from their heartfelt advice.