The doctrine of Christ in every man, as the indwelling Word of God, the Light who lights every one who comes into the world, is no peculiar tenet of the Quakers, but one which runs through the whole of the Old and New Testaments, and without which they would both be unintelligible, just as the same doctrine runs through the whole history of the Early Church for the first two centuries, and is the only explanation of them.

Theologica Germanica. 1854.