The Brook of Egypt (identified with the Wady el-'Arish) is a desert stream on the borders of Egypt. In the Bible, the border between Palestine and Egypt lies halfway between this stream and Gaza.
Brook of Egypt, or in the Assyrian text Nahal Musur, is Nahal Mizraim of Hebrew texts; it is Wadi el-Arish, the historical frontier of Egypt and Palestine.
The town of the Brook of Egypt in Esarhaddons inscription is el-Arish, the ancient Avaris.
The campaigns of Esarhaddon in Egypt and Ethiopia are recorded on his steles, particularly on that found in Sendjirli; his stele at Nahr el-Kalb, close to Beirut, also describes the campaign against Egypt and the capture of Memphis.
Though Egypt is one of the earliest countries in recorded history, and as regards its continuous civilization, yet it is a late country in its geological history and in its occupation by a settled population.
Shabaka was appointed viceroy of Egypt by his father Piankhy, and is described by the Assyrians as Sibe, commander-in-chief of Muzri, and by the Hebrews as Sua or So, king of Egypt (2 Kings 17:4).
The army was in 4 brigades, that of Ptah of Memphis, central Egypt; that of Amen of Thebes, Southern Egypt and Ethiopia; that of Set of the eastern frontier (Sukkim); and that of Ra, Heliopolis and the Delta.