Abstract
According to the Christian doctrine of the Incarnation, the Son of God is truly but only contingently a human being. But is it also the case that Christ’s individual human nature is only contingently united to a divine person? The affirmative answer to this question, explicitly espoused by Duns Scotus and William of Ockham, turns out to be philosophically untenable, while the negative answer, which is arguably implicit in St. Thomas Aquinas, explication of the Incarnation, has some surprising and significant metaphysical consequences.