'Edge' in the Bible

Command the priests carrying the ark of the covenant: When you reach the edge of the waters, stand in the Jordan.”

Now the Jordan overflows its banks throughout the harvest season. But as soon as the priests carrying the ark reached the Jordan, their feet touched the water at its edge

in the valley: Beth-haram, Beth-nimrah, Succoth, and Zaphon—the rest of the kingdom of Sihon king of Heshbon. Their land also included the Jordan and its territory as far as the edge of the Sea of Chinnereth on the east side of the Jordan.

The south side began at the edge of Kiriath-jearim, and the border extended westward; it went to the spring at the Waters of Nephtoah.