What is the meaning of Zechariah 1:12?

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

Then the angel of the LORD said, “How long, O LORD of Hosts, will You withhold mercy from Jerusalem and the cities of Judah, with which You have been angry these seventy years?”

Berean Standard Bible (BSB)

Then the angel of Yahweh replied, “O Yahweh of Armies, how long will you not have mercy on Jerusalem and on the cities of Judah, against which you have had indignation these seventy years?”

World English Bible (WEB)

Then the angel{H4397} of the LORD{H3068} answered{H6030}{(H8799)} and said{H559}{(H8799)}, O LORD{H3068} of hosts{H6635}, how long wilt thou not have mercy{H7355}{(H8762)} on Jerusalem{H3389} and on the cities{H5892} of Judah{H3063}, against which thou hast had indignation{H2194}{(H8804)} these threescore and ten{H7657} years{H8141}?

Strong's King James

Then the angel of יהוה Yahweh testified, and said, "יהוה Yahweh-Tzva'ot, how long will You have no compassion for אֵת Yerushalayim, and אֵת the cities of Y'hudah, which You scolded these 70 years?"

The F.O.G*

The F.O.G Paraphrase

And the messenger of Jehovah answereth and saith, ‘Jehovah of Hosts! till when dost Thou not pity Jerusalem, and the cities of Judah, that Thou hast abhorred these seventy years?’

Young's Literal Translation