Since holiness is the main thing that excites, draws, and governs all gracious affections, it is no wonder that all such affections tend to holiness. That which men love, they desire to have and to be united to, and possessed of. That beauty which men delight in, they desire to be adorned with. Those acts which men delight in, they necessarily incline to do.

Select Works: Treatise concerning the religious affections (ed. 1961)