Ecclesiastes 4:9-12

9Two are better than one, because they have a good return for their labor. 10For if one falls down, his companion can lift him up; but pity the one who falls without another to help him up! 11Again, if two lie down together, they will keep warm; but how can one keep warm alone? 12And though one may be overpowered, two can resist. Moreover, a cord of three strands is not quickly broken.