Albert Barnes Commentary Zechariah 10:3

"Mine anger is kindled against the shepherds, and I will punish the he-goats; for Jehovah of hosts hath visited his flock, the house of Judah, and will make them as his goodly horse in the battle." — Zechariah 10:3 (ASV)

Mine anger was kindled against the shepherds - As Ezekiel continued, Thus saith the Lord God; Behold I am against the shepherds, and I will require My flock at their hand (Ezekiel 34:10).

I punished the he-goats - The evil powerful are called the he-goats of the earth (Isaiah 14:9); and in Ezekiel God says, I will judge between cattle and cattle, between rams and he-goats (Ezekiel 34:17); and our Lord speaks of the reprobate as goats, the saved as sheep (Matthew 25:32). God visited upon these in His displeasure, because He visited His flock, the people of Judah, to see to their needs and to relieve them.

And hath made them as the goodly horse - As, before, He said, I made thee as the sword of a mighty man (Zechariah 9:13). Judah’s might was not in himself; but, in God’s hands, he had might like and above the might of this world; he was fearless, resistless; as Paul says, the weapons of our warfare are not carnal, but mighty through God to the pulling down of strongholds (2 Corinthians 10:4).