A friend in need is a friend indeed

Origin
This proverb first appeared in 1678.
Explanation
This means that a friend who helps you when you really need help is a true friend. A friend who helps out when we are in trouble is a true friend — unlike others who disappear when trouble arises. The proverb stands as a touchstone of true friendship. It states that only that person who helps us when we are in need or difficulty is a true friend. In our daily life we come across people who over a period of time become close to us. But we cannot be sure if they are true friends or just fair-weather friends. Many people develop contacts with influential people for their benefit. It will be a great mistake if one considers these apparently close people as friends. The test of true friendship is in time of difficulties. On the other hand, the fair-weather friends disappear in times of trials. They find excuses to distance themselves from us.But a true friend will always stick to a person if that person is in deep trouble. He will be concerned about the welfare of a person whom he considers as a friend. If the need be, he will make every effort to help his friend overcome the difficult situation, instead of running away from him.
Example
When I was in need of money, my friend gave it to me. A friend in need is a friend indeed.