Isaiah 19:23

"In that day shall there be a highway out of Egypt to Assyria, and the Assyrian shall come into Egypt, and the Egyptian into Assyria; and the Egyptians shall worship with the Assyrians."

What is envisioned here is the uniting of once hostile peoples in the service of God through Jesus Christ in the age of Messiah. This vision of a highway, in Isaiah's prophecy is a reference to "the way of truth." See also Isaiah 11:16,35:8; 40:3; 62:10. Thus, "the highway" appears as a favorite metaphor in Isaiah; and it should also be noted that it appears repeatedly through all sections of the prophecy, witnessing for the unity and integrity of Isaiah.

Dummelow pointed out that there were many helpful and preparatory influences leading up to the gospel age, such as, "Cyrus' proclamation recognizing Jehovah as the God of heaven."[20] To this may be added the establishment of Jewish synagogues all over the world, the reading of the prophets (after the Torah was forbidden to be read) and the continued reading of both after the Torah could again be read publicly, the near-universal adoption of the Greek language, the translation of the LXX, etc. etc.