The Church teaches temples are "Literally the house of the Lord."
"Temple, House of the Lord", churchofjesuschrist.org, The Church of Jesus Christ of Latter-day Saints, accessed August 2021
Temple, House of the Lord
See also Endowment; Holy of Holies; Ordinances; Tabernacle
Literally the house of the Lord. The Lord has always commanded His people to build temples, holy buildings in which worthy Saints perform sacred ceremonies and ordinances of the gospel for themselves and for the dead. The Lord visits His temples, and they are the most holy of all places of worship.
The tabernacle erected by Moses and the children of Israel was a portable temple. The Israelites used it during their exodus from Egypt.