 The Valley of Ayalon was first mentioned in the "Book of Joshua" as where Joshua defeated five Amorite kings.Following his midnight march to rescue the city of Gibeon from the coalition led by the King of Jebus (Jerusalem), Joshua pursued the coalition eastward, down through the descent of Beth-horon, and then southward across the Valley of Ajalon.To allow the Israelites to complete the rout before nightfall, Joshua asked the Lord to lengthen the day by uttering the command