Isaiah 63:14 - Matthew Poole's English Annotations on the Holy Bible

As a beast goeth down into the valley; a laden beast goeth warily and gently down the hill: or, as a beast goeth down to the valley for grass, that being a mountainous country: or going down for going along; so the word is used Isaiah 38:8; noting the evenness of their passage; or alluding to their going down from the shore into that great channel (as the coming out of it is called a going up, Isaiah 63:11) now made through the sea, orderly, and composedly, not like the Gadarenes swine, through consternation, ready to break their necks for haste. The Spirit of the Lord, i.e. the Lord himself, caused him to rest; led them easily, that they should not be over-travelled, or fall down, or come to any injury through weariness; thus Jeremiah expresseth it, Jeremiah 31:2, and thus God gave them rest from their enemies, drowning of them in the sea, and in their safe conduct, that they could not annoy or disturb them, leading them till he found them a place for resting; the word for leading and resting being much of a like notion, Malachi 10:6; pointing at their several rests by the way, Numbers 10:33: or it may be read by way of interrogation, as all the foregoing words, and be the close of that inquiry, And where is the Spirit that caused them to rest? or he led them to Canaan, the place of their rest; so called Deuteronomy 12:9 Psalms 95:11. So didst thou lead: the prophet here by an apostrophe doth only repeat the words in the name of the Jews that he had spake before, Isaiah 63:12: q.d. As thou didst then, so mayst thou do again if thou pleasest.