The following passage appears in the books of both Micah and Isaiah:
In the last days it shall come to pass, that the mountain of the house of the Lord shall be established in the top of the mountains, and it shall be exalted above the hills; and people shall flow unto it.
And many nations shall come, and say, Come, and let us go up to the mountain of the Lord, and to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for the law shall go forth of Zion, and the word of the Lord from Jerusalem.
And he shall judge among many people, and rebuke strong nations afar off; and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up a sword against nation, neither shall they learn war any more.Micah 4:1-3, italics added; see also Isaiah 4:2-4, 2 Nephi 12:2-4
Micah and Isaiah were contemporaries, and it’s not clear which of them wrote this prophecy first, but the fact that they both shared it emphasizes its importance.
President Dallin H. Oaks pointed out the connection between spiritual knowledge and peace in this passage:
Many take comfort from the Old Testament prophecy that nations will “beat their swords into plowshares, and their spears into pruninghooks.” (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.” (Micah 4:2.)“World Peace,” General Conference, April 1990
Isaiah further emphasized the connection between knowledge and peace in the following passage:
They shall not hurt nor destroy in all my holy mountain: for the earth shall be full of the knowledge of the Lord, as the waters cover the sea.Isaiah 11:9, 2 Nephi 21:9
Elder John A. Widtsoe taught:
Individuals make up the community, and the nation…and the only way to build a peaceful community is to build men and women who are lovers and makers of peace. Each individual by that doctrine of Christ and His Church, holds in his own hands the peace of the world.Conference Report, Oct. 1943, p. 113
Today, I will strive to grow in the knowledge of the Lord, knowing that His ways lead to peace and happiness.