PSALM 114
This psalm contains a short account of that deliverance by which God, in bringing his people out of Egypt: and conducting them to the promised inheritance, gave a proof of his power and grace which ought to be held in everlasting remembrance. The design of that wonderful deliverance was, that the seed of Abraham might yield themselves wholly to God, who, receiving them by a gracious act of adoption, purposed that they should be to him a holy and peculiar people. 1
1 "The exodus of Israel from Egypt, with some of its most remarkable accompanying and consequent miracles, are, in this brief psalm, commemorated in the boldest style of poetry, with personifications, indeed, of inanimate nature of the utmost daring and sublimity, in 'thoughts that breathe, and words that burn.'" -- Drake's Harp of Judah.