"Forsake not an old friend; for the new is not comparable to him: a new friend is as new wine; when it is old, thou shall drink it with pleasure."
~ Sirach 9:10
"An honest answer is the sign of true friendship."
~ Proverbs 24:26
"A friend means well, even when he hurts you. But when an enemy puts his hand round your shoulder - watch out!"
~ Proverbs 27:6