Thou didst walk through the sea - There was no occasion to hurry across; all was safe, for God had divided the waters: and his terrible cloud had removed from before, and stood behind them, so that it was between them and the Egyptians. See Exodus 14:19, Exodus 14:20.
Thou didst walk through the sea with Thine horses - God Himself is pictured as leading them on the way, Himself at the head of their multitude, having, as Asaph said of old “His path in the sea.” So Isaiah Isaiah 63:13. “who leddest them in the depths;” and Zechariah Zechariah 10:11. “And he shall pass through the sea.” God was literally there; for Acts 17:28. “in Him we live and move and have our being.” He who “is wholly everywhere but the whole of Him nowhere” manifested His Presence there. Such anthropomorphisms have a truth, which people‘s favorite abstractions have not.
Through the heap - oof great waters as of old Exodus 15:8; Psalm 78:13. “the waters stood us a heap, and He made the waters to stand a a heap.” The very hindrances to deliverance are in God‘s hands a way for His ends. The waves of the Red Sea rose in heaps, yet this was but a readier way for the salvation of His people and the destruction of their enemies. Dion.: “God prepareth ever a way for His elect in this present evil world, and leadeth them along the narrow way which leadeth unto life.”