As the Jews rejected Jesus around 2,000 years ago, does that mean every Jew since then has perished even though they were His chosen people? Is the believing remnant in the Kingdom simply a minor portion?
Only through faith in Jesus may someone receive God's forgiveness. This is true for Gentiles and Jews, so even a Jew must possess faith in Jesus to receive eternal life. As Paul says:
Today (as in centuries past) many Jews do not have faith in Jesus, which even Paul acknowledged in the first century:
At the same time, the Lord has always preserved a remnant of Israel in keeping with His promise to Abraham that he would have many (believing) descendants:
God has always been at work preserving a remnant of believing Jews throughout the history of the nation. Paul explains that this was true even before Jesus came:
So while it is disheartening to realize how many Jews did not receive eternal life, nevertheless we are encouraged to see God's faithfulness in preserving His people despite their unfaithfulness to Him.
The believing Jews who enter the Kingdom will come from all periods of history, both before and after Jesus' first coming. While we cannot say how large or small this remnant of Israel will be, we suspect it will be proportional to the number of Gentile believers. In other words, the Lord is likely saving a proportional number of Jews equal to the proportion of Gentiles who will be saved from among all Gentile nations. In both cases, this number will be a small proportion of all humanity, since Jesus says the gate is narrow and few find it (Matt 7:13-14).