My dad shared this with me today. I don't remember ever hearing it before. I recommend the whole talk. Here are some parts that stood out to me.
'There is power in making covenants. Weekly, as we renew our covenants and promise to take upon ourselves the name of the Son, to always remember Him, and to keep His commandments, we receive in return a transcendent promise, one filled with heavenly power: that we “may always have his Spirit to be with [us]” (Moroni 4:3). Having the Holy Ghost with us—and learning to hear His voice—is a key, perhaps the single most profound key, to remaining steadfast and immovable on the Lord’s side of the line. And it all begins by making a covenant.'
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'In today’s world, where immorality is celebrated on nearly every world stage, succumbing to moral temptation is depicted as being easier and even more desirable than maintaining moral purity. But it isn’t. The moment of sexual transgression is the last moment immorality is easy. I have never known anyone who was happier or who felt better about themselves or who had greater peace of mind as a result of immorality. Never.'
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'It is so much more comforting to live with the Spirit than without, so much more joyful to have relationships of trust and true friendship than to indulge in a physical relationship that would eventually crumble anyway. Whereas Satan’s lies lead only to enslavement, the Savior’s promise is that if we will seek the riches our Father wishes to give us, we “shall be the richest of all people, for [we] shall have the riches of eternity” (D&C 38:39). In other words, we shall have joy in this life and a fullness in the life hereafter. Righteousness begets happiness.'
From "Living on the Lord’s Side of the Line" by Sheri L. Dew of the General Relief Society Presidency 21 Mar 2000 https://speeches.byu.edu/talks/sheri-l-dew/living-lords-side-line/