Throughout the Old Testament it is repeatedly stated that the Jews were a chosen people. Israel is referred to as God’s elect nation, His chosen people. This teaches us what election is and what election is for.
Some Bible scholars and teachers believe that the unforgivable sin is Israel’s national rejection of Jesus as the Messiah. If this theory is correct, then nobody is able to commit this sin except for the Jewish people living at the time of Jesus Christ. In other words, since we are not Jewish and we are not living at the time of Jesus, we cannot commit this sin.