4:9 Two are better than one; because they have a good reward for their labour.
4:10 For if they fall, the one will lift up his fellow: but woe to him that is alone when he falleth; for he hath not another to help him up.
4:11 Again, if two lie together, then they have heat: but how can one be warm alone?
This is talking about The lion (letter) and The Lamb(Holy Spirit); Grace preachers and Law preachers; New Testament and Old Testament.
*The New testament is now in The Old testament!*
4:5 One Lord, one faith, one baptism, 4:6 One God and Father of all, who is above all, and through all, and in you all.
Jehovah Yahweh Reigns!!!