Comparison: 1 Nephi 21:13 -> Isaiah 49:13

1 Nephi 21:13 (1830 edition page 55) Isaiah 49:13
Sing, O Heavens; and be joyful, O earth; for the feet of them which are in the east shall be established; and break forth into singing, O mountains: for they shall be smitten no more: for the Lord hath comforted his people, and will have mercy upon his afflicted. Sing, O heavens; and be joyful, O earth; and break forth into singing, O mountains: for the LORD hath comforted his people, and will have mercy upon his afflicted.