דָּרַ֥כְתָּ בַיָּ֖ם סוּסֶ֑יךָ חֹ֖מֶר מַ֥יִם רַבִּֽים׃
Thou hast trodden the sea with Thy horses, the foaming of mighty waters.
Pirkei Avot
Ten miracles were wrought for our ancestors in Egypt, and ten at the sea. Ten plagues did the Holy one, blessed be He, bring upon the Egyptians in Egypt and ten at the sea. [With] ten trials did our ancestors try God, blessed be He, in the Wilderness, as it is said, “and they have tried Me these ten times and they have not listened to my voice” (Numbers 14:22).