That is a good one. It defines what a true friend is. Though it doesn't speak to every occasion of what happens to friendships. Don't forget Proverbs 18:1 (NIV). Humans aren't perfect at friendships. And it would be misleading to give the impression that they are. Just look at the number of murders and divorces in America alone. That says a lot. The only one that was perfect at Friendship was Jesus. None of the 12 passed the test. When Jesus needed a friend, they all ran.