Charles H. Spurgeon on Psalms 77:20

Thou leddest thy people like a flock by the hand of Moses and Aaron. What a transition from tempest to peace, from wrath to love. Quietly as a flock Israel was guided on, by human agency which veiled the excessive glory of the divine presence. The smiter of Egypt was the shepherd of Israel. He drove his foes before him, but went before his people. Heaven and earth fought on his side against the sons of Ham, but they were equally subservient to the interests of the sons of Jacob. Therefore, with devout joy and full of consolation, we close this Psalm; the song of one who forgot how to speak and yet learned to sing far more sweetly than his fellows.