This passage of Isaiah can have multiple
meanings:
1.
The Salt Lake Temple in the Rocky Mountains. President
Wilford Woodruff mentioned this Isaiah passage in the Salt Lake Temple
dedicatory prayer (Discourses of Wilford Woodruff, 337)
2.
The New Jerusalem Temple in Independence,
Missouri (D&C 57:1-3 and headnote)
3.
The Old Jerusalem Temple (D&C 133:12-13) (D.
Kelly Ogden and Andrew C. Skinner, The Old Testament Verse By Verse, 2
vols. [Salt Lake City: Deseret Book, 2013], 2:183)
Here is the excerpt from the dedicatory prayer for the Salt
Lake temple:
O Lord, we regard with intense
and indescribable feelings the completion of this sacred house. Deign to accept
this the fourth Temple, which Thy Covenant Children have been assisted by Thee
in erecting in these mountains. In past ages Thou didst inspire with Thy Holy
Spirit Thy servants, the prophets to speak of the time in the latter days when
the mountain of the Lord’s house should be established in the tops of the
mountains, and should be exalted above the hills. We thank Thee that we have
had the glorious opportunity of contributing to the fulfillment of these
visions of Thine ancient Seers, and that Thou hast condescended to permit us to
take part in the great work. And as this portion of Thy servants’ words has
thus so marvelously been brought to pass, we pray Thee, with increased faith
and renewed hope, that all their words with regard to thy great work in
gathering Thine Israel and building up Thy kingdom on earth in the last days
may be as amply fulfilled, and that, O Lord, speedily. (Wilford Woodruff, “Great
Salt Lake City Utah Temple Dedicatory Prayer,” April 6, 1893, repr. Selected
Manifestations, comp. Davi M. Reay and Vonda S. Reay [Oakland, Calif.:
Self-Published, 1985], 133)