Complex sentence: In The Church of Jesus Christ of Latter-day Saints (LDS Church), temples are buildings dedicated to be Houses of the Lord, and they are considered by church members to be the most sacred structures on earth.
Split into simpler sentences: In The Church of Jesus Christ of Latter-day Saints (LDS Church), a temple is a buildings dedicated to be a House of the Lord. Temples are considered by church members to be the most sacred structures on earth.