Meaning of RIVER OF EGYPT

Under this translation there are two different water currents:
(A) The Nile. "Y'or Mizraim" always refers to the Nile itself (cf. Is. 7:18; Am. 8:8).

(B) "Nahal Mizraim", lit. "torrent of Egypt," and which formed the boundary between Israel and Egypt during the time of Israel's greatest extension, during the united monarchy under Solomon (1 Kings 8:65; 2 Chron. 7:8). It is also mentioned as the southern limit of the inheritance of the children of Israel in Joseph. 15:4, "stream," Josh. 15:47, "river."

(C) In Gen. 15:18, however, in God's promise to Abraham, mention is made that the land that his descendants would possess would extend from "the river (nahar) of Egypt to the great river, the river Euphrates."

In Ex. 23:31, on the other hand, establishes the limits of Israel "from the Red Sea to the Sea of the Philistines, and from the wilderness to the Euphrates."

Examination of these passages leads one to think that while Israel's historical border with Egypt was the "torrent of Egypt," currently known as Wadi el-Arish, the prophetically promised boundaries extend from the nahar of Egypt, which is most likely the pelusiac arm of the Nile Delta, which flows in front of the Sinai Peninsula; In this way, the passages of Gen. 15:18 and Ex. 23:31, which establishes the boundaries of Israel at the Nile and the Red Sea.

respectively, they correspond, giving Israel the entire Sinai Peninsula.