Matthew 23:37-39.  ” O Jerusalem, Jerusalem, thou that killest the prophets, and stonest them which are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not!  Behold, your house is left unto you desolate. For I say unto you, Ye shall not see me henceforth, till ye shall say, Blessed is he that cometh in the name of the Lord.

If you wish to prove the bible, the existence of God, the culmination of past and future prophetical events according to the bible, the times surrounding the second coming of Jesus Christ.  Then Israel is the very source and key that unlocks the mystery of the ages.  In fact Christ shall rule from Mount Zion in Jerusalem, Psalms 2:6-9, and even gather and judge the nations in the valley of Megiddo, in lower Galilee in Israel.  See Revelation 12:12-16 and Joel 3.  Israel will be the world’s new superpower with Christ reigning as supreme Lord over the whole earth.  Zechariah 14:9.

Isaiah 45:23.
By myself I have sworn, my mouth has uttered in all integrity a word that will not be revoked: Before me every knee will bow; by me every tongue will swear.”

Israel is the canary in the coal mine, the prophetic warning to all nations of the coming great and terrible day of the Lord.  Israel belongs to the Jewish people by divine right, the attempt to take away and divide her will bring divine wrath on the nations that try to destroy and divide her.  This is not saying that a Jew is saved by the law, for they also must bow there knee to Christ; in fact all nations and Kings will, fulfilling the prophecy as written in Isaiah 45:23.  However the Jews returning to the one whom they rejected will be one of the last great prophecies of this millennium.