Comparison: 1 Nephi 20:3 -> Isaiah 48:3

1 Nephi 20:3 (1830 edition page 53) Isaiah 48:3
Behold, I have declared the former things from the beginning; and they went forth out of my mouth, and I shewed them; I did shew them suddenly. I have declared the former things from the beginning; and they went forth out of my mouth, and I shewed them; I did them suddenly, and they came to pass.