'Edge' in the Bible

Then they utterly destroyed everything that was in the city, both man and woman, young and old, and ox and sheep and donkey, with the edge of the sword.

Sihon king of the Amorites, who lived in Heshbon, and ruled from Aroer, which is on the edge of the valley of the [river] Arnon, both the middle of the valley and half of Gilead, and as far as the brook Jabbok, [which is] the border of the sons of Ammon;

from Aroer on the edge of the valley of the [river] Arnon, and the city in the middle of the valley, and all the plain of Medeba, as far as Dibon;

Their territory was from Aroer, which is on the edge of the valley of the [river] Arnon, and the city which is in the middle of the valley and all the plain by Medeba;

The southern side was from the edge of Kiriath-jearim, and the border went on westward and went to the source of the waters of Nephtoah.

Then the border went down to the edge of the hill overlooking the Valley of Ben-hinnom (son of Hinnom), which is at the north end of the Valley of Rephaim; and it descended to the Valley of Hinnom, south to the slope of the Jebusite, and went on down to En-rogel.

And the [other] sons of Israel heard it said, “Look, the sons of Reuben and the sons of Gad and the half-tribe of Manasseh have built an altar at the edge of the land of Canaan, in the region [west] of the Jordan, on the side belonging to the sons of Israel.”

They buried him in the territory of his inheritance in Timnath-serah, which is in the hill country of Ephraim, on the north side of Mount Gaash.