'Fords' in the Bible

He said to them, "Follow me; for Yahweh has delivered your enemies the Moabites into your hand." They followed him, and took the fords of the Jordan against the Moabites, and didn't allow any man to pass over.

The Gileadites took the fords of the Jordan against the Ephraimites. It was so, that when [any of] the fugitives of Ephraim said, Let me go over, the men of Gilead said to him, "Are you an Ephraimite?" If he said, "No;"

then they said to him, "Now say 'Shibboleth;'" and he said "Sibboleth;" for he couldn't manage to pronounce it right: then they laid hold of him, and killed him at the fords of the Jordan. At that time, forty-two thousand of Ephraim fell.