Covenants elevate us; scriptures to read to prepare to attend the temple

"Each temple is a house of learning. There we are taught in the Master’s way. His way differs from modes of others. His way is ancient and rich with symbolism. We can learn much by pondering the reality for which each symbol stands. Teachings of the temple are beautifully simple and simply beautiful. They are understood by the humble, yet they can excite the intellect of the brightest minds.

"Spiritual preparation is enhanced by study. I like to recommend that members going to the temple for the first time read short explanatory paragraphs in the Bible Dictionary, listed under seven topics: “Anoint,” “Atonement,” “Christ,” “Covenant,” “Fall of Adam,” “Sacrifices,” and “Temple.” Doing so will provide a firm foundation.

"One may also read in the Old Testament and the books of Moses and Abraham in the Pearl of Great Price. Such a review of ancient scripture is even more enlightening after one is familiar with the temple endowment. Those books underscore the antiquity of temple work.

"With each ordinance is a covenant—a promise. A covenant made with God is not restrictive, but protective. Such a concept is not new. For example, if our water supply is not clean, we filter the water to screen out harmful ingredients. Divine covenants help us to filter out of our minds impurities that could harm us. When we choose to deny ourselves of all ungodliness, we lose nothing of value and gain the glory of eternal life. Covenants do not hold us down; they elevate us beyond the limits of our own power and perspective."

- Russell M. Nelson, Of the Quorum of the Twelve Apostles, "Personal Preparation for Temple Blessings," General Conference, April 2001

https://www.lds.org/general-conference/2001/04/personal-preparation-for-temple-blessings?lang=eng