After the gigantic chapter 53, writing about the sin-bearing, suffering servant the narrative switches back to God’s servant, Israel.
In the New Testament God’s servant Israel is expanded to include the adopted children of Abraham.
We have this hope: No weapon forged against you will prevail.
This prophesy was given about 150 years before it happened. Cyrus the elder ruled from 559 to 530 B.C. and let the captives return and rebuild the temple.