Isaiah 60

2 Isaiah predicted that the world would be spiritually darkened, but then the Messiah would appear in Israel and act as beacon for the world.
3 Jesus' offer of reconciliation through faith has indeed proven to be more accessible to people of all nations than the stringent requirements of the Mosaic Law were. This does not mean that the Mosaic Law is ignored, but Jesus fulfilled the most difficult requirements in such a way that by faith in Him God counts His good works as our own.
4 This may be a picture of what happened immediately after Jesus' resurrection when thousands of Jews and Gentiles were coming to believe in Christ. The main reason that would seem to exclude this from the end times is the reference to animal sacrifice in verse seven. Paul and other writers make it exceedingly clear that animal sacrifices are no longer needed since Jesus was the ultimate sacrifice. Jews were not forced to give up their religious practices, but it was clear that Gentiles were encouraged not to do these things. The period would also not refer to the Last Day, since there will be no bloodshed in heaven.
5 The New Testament records several instances of the Jewish leaders denouncing Christianity. However, we must remember that thousands of Jews did believe in Jesus. These believers did rejoice at the acceptance of the Gentiles into God's kingdom, and the Gentile believers helped them financially when they were in need. In modern times, some Gentile nations have been helpful in restoring Israel as a nation.
7 See comments on verse four.