You will be hated by everyone because of my name. But the one who endures to the end will be saved. When they persecute you in one town, flee to another. For truly I tell you, you will not have gone through the towns of Israel before the Son of Man comes. (Matthew 10:22-23 CSB)
And all nations will hate you because you are my followers. But everyone who endures to the end will be saved. When you are persecuted in one town, flee to the next. I tell you the truth, the Son of Man will return before you have reached all the towns of Israel. (Matthew 10:22-23 NLT)
The listeners thought that this will happened during their lifetime. It turned out that before Jesus can return, He was crucified, resurrected and ascended to heaven. Israel was dispersed and returned after nearly 2000 years. And after 2000 years, Christian missionaries still have not reached all the towns of Israel and not all the Jews believe (but Jews have heard of Jesus during their diaspora). But when Jesus returns, they will all believe in a single day (Isaiah 66:8).
The gospel goes west from Israel to Macedonia (Acts 16:9) and Europe, go one round the earth and comes back to Israel from the east. So the Arabs and Iranians will believe in Christ first before the Jews.
For as the lightning flashes in the east and shines to the west, so it will be when the Son of Man comes. (Matthew 24:27 NLT)