And thus regulated, the principle of sympathy, springing as it does from holy love, is one of the most important and effective elements of a holy life. It links the divine with the human, the upright with the fallen, the angel with the man. It has been the moving impulse, the life, of good men in all ages of the world. It detached Moses from the court of Egypt, that it might unite him with the sufferers of the desert; it poured its energies into the heart of Paul, and carried him from nation to nation: in modern times, it has carried devoted missionaries into all parts of the world; it moves the hearts of angels, of whom it is said, "there is joy among the angels in heaven over one sinner that repenteth." It achieved its mightiest triumph when the Saviour of the world, clothing himself in human form, chose to be smitten and die upon the cross rather than separate himself from the interests of fallen humanity.
— A Treatise on Divine Union (1851) Part 4, Chapter 7.