LDS Church founder, Joseph Smith, Jr, taught this doctrine in the King Follett Discourse.
Some critics regard Exaltation as blasphemous.
See also Christianity and the Church of Jesus Christ of Latter-day Saints, Theosis and Salvation.
"Exaltation" also means simply "lifting up" or "raising up"; it appears in the name of one the twelve Orthodox feasts, the "Exaltation of the Holy and Lifegiving Cross".