Isaiah 63:13 → Isaiah 51:10

Isaiah 63:13 recalls God leading Israel "through the depths" (בַּתְּהֹמוֹת, batehomot), while Isaiah 51:10 asks "Was it not You who dried up the sea, the waters of the great deep (תְּהוֹם רַבָּה, tehom rabbah), who made a road in the depths of the sea for the redeemed to cross over?" Both passages within Isaiah use the exodus sea-crossing as the basis for an appeal to God to act again. Isaiah 51:10 is a direct petition — "Awake, awake, O arm of the LORD" — using the tehom vocabulary to recall the original miracle. Isaiah 63:13 turns this same memory into a lament, asking "Where is the One who led them through the depths?" The two passages together form a literary arc within Second and Third Isaiah: the confident appeal of 51:10 becomes the anguished question of 63:13, both grounded in the same exodus deep-water imagery.