Gregory of Nyssa, on Josh 3:14

“So the people went out of their tents, to pass over the Jordan: and the priests that carried the ark of the covenant. went on before them.”

“Joshua son of Nun made the Jordan River stop, but only as long as the ark was in the water. As soon as the people had crossed to the other side and the ark had come through, he gave the river back its usual flow again. The bottom of the deep in the Red Sea was denuded of water when the sea was driven back to either side by the Spirit, but the duration of the marvel was the passage of the army through the deep on the dry strip. But after that the surface of the sea became one again, and the temporary gap was flooded over. So this remains a unique event which occurred in such a way that the marvel did not lose credibility because of the passage of time, since it continues to be testified to by visible traces.”

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