Parashat Beshalach
Tehillim 77
Your way, O G-d, is holy. Who is so great a G-d as our G-d? You are the G-d that does wonders; you have declared your strength among the people. With your arm you have redeemed your people, the sons of Yaakov and Yosef. Selah. The waters saw you, O G-d, the waters saw you; they were afraid; the depths also trembled. The clouds poured out water; the skies sent out a sound; your arrows flashed on every side. The voice of your thunder was in the whirlwind; the lightnings lightened the world; the earth trembled and shook. Your way was through the sea, and your path through the great waters; and your footsteps were not known. You led your people like a flock by the hand of Moshe and Aharon.
(Tehillim 77:14-21; Beshalach - Shemot 14:21-22; Shemot 6:6, Devarim 26:8)