Israelites in Prophecy

ISAIAH 52:1

1 Awake, awake; put on thy strength, O Zion; put on thy beautiful garments, O Jerusalem, the holy city: for henceforth there shall no more come into thee the uncircumcised and the unclean.

Isaiah promised a great future for Israel, and said the uncircumcised will no longer enter Jerusalem forever. Some expect a future fulfilment of this verse.

But Paul taught that there's no need to be circumcised. And Jesus said the hour had come when worshipers would no longer be required to go to Jerusalem.

Therefore Isaiah's prophecy must have been fulfilled at a time when uncircumcision and Jerusalem had significance with regards to worship and with regards to God's requirements. That is, the verse was fulfilled during Old Covenant times.

And sometime after that, Christ came to Israel, fulfilling the promises, the Law and the Prophets. All who believed on Jesus were saved, including Gentiles - as the Prophets also foresaw.