The term "reverse incarnation" was first used by the German theologian Gottfried Thomasius in the 19th century. Thomasius argued that, after the ascension of Jesus Christ, he took on a glorified body that was no longer subject to the limitations of time and space. He based this argument on passages in the New Testament, such as 1 Corinthians 15:45-49, which says that "the first man Adam became a living being, the last Adam became a life-giving spirit."