Bible Verses About Fellowship: General references

Two are better than one, in that their cooperative efforts yield this advantage:

if one of them falls, the other will help his partner up - woe to him who is alone when he falls and has no one to help him up.

Again, if two people sleep together, they keep each other warm; but how can one person be warm by himself?

Moreover, an attacker may defeat someone who is alone, but two can resist him; and a three-stranded cord is not easily broken.