"The prophecy of the word of the Lord concerning Israel:
Says the Lord, Who stretches out the heavens and founds the earth and forms the spirit of man within him:
Behold! I am making Jerusalem a cup of weakness (me: poison רעל) for all the peoples around, and also on Judah, [that he] shall be in the siege against Jerusalem.
And it shall come to pass on that day that I will make Jerusalem a stone of burden for all peoples; all who bear it shall be gashed, and all the nations of the earth shall gather about it...
...On that day I will make the princes of Judah as a fiery stove among wood, and as a brand of fire among sheaves. And they shall consume on the right and on the left all the nations round about, and Jerusalem shall still stay in its place in Jerusalem.
And it shall come to pass on that day, that I will seek to destroy all the nations that come upon Jerusalem.
And I will pour out upon the house of David and upon the inhabitants of Jerusalem a spirit of grace and supplications. And they shall look to me because of those who have been thrust through [with swords], and they shall mourn over it as one mourns over an only son and shall be in bitterness, therefore, as one is embittered over a firstborn son.
On that day there shall be great mourning (Mezudat Zion: over anointed Ben Yosef) in Jerusalem, like the mourning of Hadadrimmon in the Valley of Megiddon."
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The rule : good prophecies MUST come into place, while bad ones DO NOT.