Origen, on Num 33:8

“And departing from Phihahiroth, they passed through the midst of the sea into the wilderness: and having marched three days through the desert of Etham, they camped in Mara.”

“Next they set out from Iroth and pass through the midst of the Red Sea and camp at Bitter Waters. We have said that the time of starting places is a time of dangers. How hard a temptation it is to pass through the midst of the sea, to see the waves rise piled up, to hear the noise and rumbling of the raging waters! But if you follow Moses, that is, the law of God, the waters will become for you walls on the right and left, and you will find a path on dry ground in the midst of the sea.”

Imported from an open dataset — not yet checked against the printed edition.