Again, if two lie together, they keep warm, but how can one keep warm alone?
Here Solomon fastens upon another instance of the vanity of this world, that frequently the more men have of it the more they would have; and on this they are so intent that they have no enjoyment of what they have. Now Solomon here shows, I.
Commenting on Ecclesiastes 4:7-12
Again, if two lie together, then they have heat,.... The Targum adds, in the winter; when it is a cold season, they warm one another by lying together. The Targum interprets it of a man and his wife; it is true of others; see Kg1 1:1; but how can one be warm alone? not soon, nor easily, in time of cold weather.
(See on Kg1 1:1). The image is taken from man and wife, but applies universally to the warm sympathy derived from social ties. So Christian ties (Luk 24:32; Act 28:15).