Israel's rejection of the Messiah would result in God removing His protection of the people (Jews).
OT Prophecy NT Fulfillment
Zechariah 11:10
And I took my staff, even Beauty, and cut it asunder, that I might break my covenant which I had made with all the people.
Luke 19:41–44
[41] And when he was come near, he beheld the city, and wept over it.
[42] Saying, If thou hadst known, even thou, at least in this thy day, the things which belong unto thy peace! but now they are hid from thine eyes.
[43] For the days shall come upon thee, that thine enemies shall cast a trench about thee, and compass thee round, and keep thee in on every side.
[44] And shall lay thee even with the ground, and thy children within thee; and they shall not leave in thee one stone upon another; because thou knewest not the time of thy visitation.
Tanakh – Neviim – Zechariah 11:10
And I took my staff Graciousness, and cut it asunder, that I might break My covenant which I had made with all the peoples.
Hebrew OT – Zechariah 11:10
[11:10] וָאֶקַּח אֶת־מַקְלִי אֶת־נֹעַם
וָאֶגְדַּע אֹתוֹ לְהָפֵר אֶת־בְּרִיתִי
אֲשֶׁר כָּרַתִּי אֶת־כָּל־הָעַמִּים