What is the meaning of Zechariah 12:3?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

On that day, when all the nations of the earth gather against her, I will make Jerusalem a heavy stone for all the peoples; all who would heave it away will be severely injured.

Berean Standard Bible (BSB)

It will happen in that day, that I will make Jerusalem a burdensome stone for all the peoples. All who burden themselves with it will be severely wounded, and all the nations of the earth will be gathered together against it.

World English Bible (WEB)

And in that day{H3117} will I make{H7760}{(H8799)} Jerusalem{H3389} a burdensome{H4614} stone{H68} for all people{H5971}: all that burden{H6006}{(H8802)} themselves with it shall be cut in pieces{H8295}{(H8800)}{H8295}{(H8735)}, though all the people{H1471} of the earth{H776} be gathered together{H622}{(H8738)} against it.

Strong's King James

It will happen in that day that I will make Yerushalayim a heavy stone for all the peoples, all who lift it will be grievously wounded. All the nations of the land will be gathered against it.

The F.O.G*

The F.O.G Paraphrase

And it hath come to pass, in that day, I make Jerusalem a burdensome stone to all the peoples, All loading it are completely pressed down, And gathered against it have been all nations of the earth.

Young's Literal Translation