ἐπιβεβηκέναι, cf. above, 20. 4, 6. The Union of God and Man in Christ is of course ‘hypostatic’ or personal, and thus (supra 17. 1), different in kind from the union of the Word with Creation. His argument is ad homines. It was not for thinkers who identified the Universe with God to take exception to the idea of Incarnation.