Pure love

Thus having spoken of the fountain and subject of this love, I proceed

IV. To say something of the principle, or the love itself, which fills the heavenly world. And of this I would take notice, first, of the nature, and second, the degree of it.

First. As to its nature. It is altogether holy and divine. Most of the love which there is in this world is of an unhallowed nature. But in heaven, the love which has place there is not carnal, but spiritual; not proceeding from corrupt principles, not from selfish motives, and to mean and vile purposes; but there love is a pure flame. 

The saints there love God for his own sake, and each other for God's sake, for the sake of that relation which they bear to God, and that image of God which is upon them.