The Israelites in Egypt (Isa 19:18-19:18)

“On that day,

There will be five cities

In the land of Egypt

That speak the language of Canaan.

They swear allegiance

To Yahweh of hosts.

One of these will be called

The City of the Sun.”

This section seems to imply that Israelites had settled in 5 Egyptian cities. We know that they were in Alexandria after the 4th century BCE. Perhaps there were some settlements in the 6th century BCE during the time of the Exile. On other hand, some of these may have been Israelites who never left Egypt when Moses led the Exodus. 5 of these cities in Egypt were speaking Canaanite or a Semitic language, not the Egyptian language. They all swore allegiance to Yahweh. One of these cities was the City of Sun, probably a reference to Heliopolis, which is near present day Cairo.