Elder Neal A. Maxwell, Oct. 1991
Sin, on the other hand, brings sameness; it shrinks us to addictive appetites and insubordinate impulses. For a brief surging, selfish moment, sin may create the illusion of individuality, but only as in the grunting, galloping Gadarene swine! (See Matt. 8:28–32.)
Repentance is a rescuing, not a dour doctrine. It is available to the gross sinner as well as to the already-good individual striving for incremental improvement.
Repentance requires both turning away from evil and turning to God. (See Deut. 4:30; see also Bible Dictionary, s.v. “Repentance.”) When “a mighty change” is required, full repentance involves a 180-degree turn, and without looking back! (Alma 5:12–13.) Initially, this turning reflects progress from telestial to terrestrial behavior, and later on to celestial behavior. As the sins of the telestial world are left behind, the focus falls ever more steadily upon the sins of omission, which often keep us from full consecration.
Later in talk:
Giving away all our sins is the only way we can come to know God.
As we do repent, however, special assurances await: “Though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.” (Isa. 1:18.)
“All his transgressions … shall not be mentioned unto him.” (Ezek. 18:22.)
“I, the Lord, remember [their sins] no more”! (D&C 58:42.)
Along with all the foregoing reasons for our individual repentance, Church members have a special rendezvous to keep, brothers and sisters. Nephi saw it. One future day, he said, Jesus’ covenant people, “scattered upon all the face of the earth,” will be “armed with righteousness and with the power of God in great glory.” (1 Ne. 14:14.) This will happen, but only after more members become more saintly and more consecrated in conduct.
https://www.churchofjesuschrist.org/study/general-conference/1991/10/repentance?lang=eng