Ecclesiastes 4:9-12 (New International Version)

 ⁹ Two are better than one,
       because they have a good return for their work:

 ¹⁰ If one falls down,
       his friend can help him up.
       But pity the man who falls
       and has no one to help him up!

 ¹¹ Also, if two lie down together, they will keep warm.
       But how can one keep warm alone?

 ¹² Though one may be overpowered,
       two can defend themselves.
       A cord of three strands is not quickly broken.