בְּבִיאַת הַמָּשִׁיחַ וְאַף עַל פִּי
שֶׁיִּתְמַהְמֵהַּ עִם כָּל זֶה אֲחַכֶּה לּוֹ
בְּכָל יוֹם שֶׁיָּבוֹא
Moses Maimonides
Thirteen Principles of Jewish Faith, #12

Jewish messianism
Mashiach
Crucifixion
Messiah is a critical, imho, and defining kabbalistic pivot. Jewish Kabbalah & Christian Cabala are two ships that never meet. Deploying fundamentally different perspectives about reality. (If I'm not mistaken: Islam and Christianity view the Jewish Messiah as the Anti-Christ (which is kinda the whole point, i guess)).