Ecclesiastes 4:9-12

Two people are better than one. When two people work together, they get more work done. If one person falls, the other person can reach out to help. But those who are alone when they fall have no one to help them. If two people sleep together, they will be warm. But a person sleeping alone will not be warm. An enemy might be able to defeat one person, but two people can stand back-to-back to defend each other. And three people are even stronger. They are like a rope that has three parts wrapped together—it is very hard to break.