Was it not You who dried up the sea, the waters of the great deep, who made a road in the depths of the sea for the redeemed to cross over?
In these verses we have, I. A prayer that God would, in his providence, appear and act for the deliverance of his people and the mortification of his and their enemies. Awake, awake! put on strength, O arm of the Lord! Isa 51:9. The arm of the Lord is Christ, or it is put for God himself, as Psa 44:23. Awake! why sleepest thou?
Commenting on Isaiah 51:9-16
Art thou not it which hath dried the sea, the waters of the great deep,.... That is, the Red sea, and the deep waters of it; as it did, by causing a strong east wind to blow, which drove the sea back, and made it a dry land, in the midst of which the children of Israel walked as on dry land, Exo 14:21 and...
it--the arm. Art not Thou the same Almighty power that . . . ? dried the sea--the Red Sea (Isa 43:16; Exo 14:21).