Comparison: 1 Nephi 20:21 -> Isaiah 48:21

1 Nephi 20:21 (1830 edition page 54) Isaiah 48:21
And they thirsted not; he led them through the deserts: he caused the waters to flow out of the rock for them: he cleaved the rock also, and the waters gushed out. And they thirsted not when he led them through the deserts: he caused the waters to flow out of the rock for them: he clave the rock also, and the waters gushed out.