Which doctrine states that Christ's divine nature exists outside of his human nature?

The doctrine that asserts Christ's divine nature exists outside of his human nature is known as Extra Calvinisticum. This theological concept developed during the Reformation and is particularly associated with John Calvin. It emphasizes the distinction between Christ's two natures—divine and human—while holding that the divine nature remains omnipresent and transcendent, not limited by the physical limitations of his humanity.

This understanding is crucial in addressing how the divine aspect of Christ interacts with the human aspect, particularly in the realms of theology and soteriology. The concept helps clarify that while Christ is fully God and fully man, his divine nature does not become constrained by his human experiences.

Monophysitism refers to the belief that Christ has one nature—a combined divine and human nature—rather than two distinct ones. Christology generally refers to the study of the nature and work of Christ, encompassing various doctrines but is not a singular doctrine itself in the same way that Extra Calvinisticum is. The doctrine of Incarnation describes the act of God becoming flesh in the person of Jesus Christ but does not specifically address the co-existence of the divine and human natures as distinct entities in the way that Extra Calvinisticum does.