Thomas Boston, Works, 5:317:
They that are of God love the society of the regenerate, considered as a holy society, separated from the world lying in wickedness, Heb. 12:22. The picture of that society drawn in the Bible is beautiful in their eyes, more alluring to them than the richest, most powerful, and most gay and splendid society in the world; and therefore they desire more to be of it, than of any other whatsoever. The grace in it glisters more in their eyes than gold in the world; and so it is not with others, 1 John 2:15; Cant. 1:7.
Source: http://www.puritanboard.com/f25/they-love-society-regenerate-84435/, Comment #1