Verse 12-23. See Psalms on "Psalms 74:12" for further information.
Verse 13. Thou didst divide the sea by thy strength. Infinite power split the Red Sea in twain. Israel delighted to rehearse this famous act of the Lord.
Thou brakest the heads of the dragons in the waters. Monsters long accustomed to the deep found themselves left high and dry. Huge things of the sea cave and the coral grot were deprived of their vital element, and left with crushed heads upon the dry channel bed. There, too, that old dragon Pharaoh was utterly broken, and Egypt herself had the head of her power and pomp broken with an almighty blow. Even thus is that old dragon broken by him who came to bruise the serpent's head, and the sea of wrath no longer rolls before us; we pass through it dry shod. Our faith as to the present is revived by glad memories of the past.
EXPLANATORY NOTES AND QUAINT SAYINGS
Verse 13. Thou didst divide the sea. Thou, O Lord, didst make firm the flowing sea, that there might be a way for our fathers to pass over, and in those very waters through which thou didst lead thy ransomed, thou didst utterly overthrow the hosts of Egypt, who were like dragons for ferocity, as they sought to devour thy people. Jansenius.
HINTS FOR PASTORS AND LAYPERSONS