2 Nephi 9:7 and 12:4

In 2 Nephi 9:7 its states, "Wherefore, it must needs be an infinite atonement-save it should be an infinite atonement this corruption could not put on incorruption. Wherefore, the first judgement which came upon man must needs have remained to an endless duration. And if so, this flesh must have laid down to rot and to crumble to its mother earth, to rise no more. "

Elder Russell M. Nelson of the Quorum of the Twelve Apostles explained several ways in which the Atonement is infinite:
"His Atonement is infinite-without an end. 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 time, putting an end to the preceding prototype of animal sacrifice. It was infinite in scope-it was to be done once for all. And the mercy of the Atonement extends not only to an infinite number of people, but to an infinite number of worlds created by Him. 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" (in Conference Report, Oct. 1996,46; or Ensign, Nov. 1996, 35).

In 2 Nephi 12:4 it states, "And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plow-shares, and their spears into pruning-hooks--nation shall not life up sword against nation, neither shall they learn war any more."

Elder Dallin H. Oaks said spoke of the peace that will finally come to the earth after the Lord's Second Coming. He also idenitified the reason why there will be no peace prior to that time: "Many take comfort from the Old Testament prophecy that nations will 'beat their swords into plowshares, and their spears into pruning hooks' (Micah 4:3). But this prophecy only applies to that time of peace which follows the time when the God of Jacob 'will teach us of his ways, and we will walk in his paths' (4:2). For now, we have wars and conflicts, and everywhere they are rooted in violations of the commandments of God" (in Conference Report, Apr. 1990, 92; or Ensign, May 1990, 72).