“His Atonement is infinite—without an end [see 2 Nephi 9:7; 25:16; Alma 34:10, 12, 14]. It was also infinite in that all humankind would be saved from never-ending death. It was infinite in terms of His immense suffering. … It was infinite in scope—it was to be done once for all [see Hebrews 10:10]. And the mercy of the Atonement extends not only to an infinite number of people, but also to an infinite number of worlds created by Him [see D&C 76:24; Moses 1:33]. It was infinite beyond any human scale of measurement or mortal comprehension.
“Jesus was the only one who could offer such an infinite atonement, since He was born of a mortal mother and an immortal Father. Because of that unique birthright, Jesus was an infinite Being” (Russell M. Nelson, “The Atonement,” Ensign, Nov. 1996, 35).
“An infinite atonement was required to redeem Adam, Eve, and all of their posterity. …
“According to eternal law, that atonement required a personal sacrifice by an immortal being not subject to death. Yet He must die and take up His own body again. The Savior was the only one who could accomplish this. From His mother He inherited power to die. From His Father He obtained power over death” (Russell M. Nelson, “Constancy amid Change,” Ensign, Nov. 1993, 34).
“We need a strong faith in Christ to be able to repent. … Faith in Christ will change our thoughts, beliefs, and behaviors that are not in harmony with God’s will.
“… Repentance means a change of mind and heart—we stop doing things that are wrong, and we start doing things that are right” (Dieter F. Uchtdorf, “Point of Safe Return,” Ensign or Liahona, May 2007, 100).