Albert Barnes Commentary Zechariah 14:1

"Behold, a day of Jehovah cometh, when thy spoil shall be divided in the midst of thee." — Zechariah 14:1 (ASV)

Behold the Day of the Lord cometh - Literally, “a day comes, the Lord’s,” in which He Himself will be Judge, and no longer leave humanity to fulfill its own will and despise God’s; in which His glory and holiness and the righteousness of all His ways will be revealed.

And thy spoil shall be in the midst of thee - Jerome: “How great will the distress be, that the spoils should be divided in her midst. It often happens that what is plundered in the city by a sudden assault is divided in the field or in a solitary place, for fear that the enemy might attack them. But now there will be such a heavy weight of calamities, and so great will be the conquerors' assurance, that the spoils will be divided in the midst of the city.”