Ezekiel 21:11

“And he hath given it to be furbished, that it might be handled, &c.] Either Nebuchadnezzar, or rather God, or the Son of God, prepared and brightened the sword, that it might be handled and made use of, either by the Chaldeans or Romans, to the destruction of the Jews. The Targum is, “he gave their vengeance to be delivered into the hand of the king of Babylon.” The sword is sharpened and furbished, to give it into the hand of the slayer; either the king of Babylon, Nebuchadnezzar; or the Roman emperor, Titus Vespasian.”

“the slayer--the Babylonian king in this case; in general, all the instruments of God's wrath (Rev 19:15).”

“The second word of judgment: the glittering and destroying sword. The passage may be called the “Lay of the Sword;” it is written in the form of Hebrew poetry, with its characteristic parallelism. Ezekiel 21:10 It contemneth the rod of my son, as every tree - The rod is the scepter of dominion, assigned to Judah Genesis 49:10. The destroying sword of Babylon despises the scepter of Judah; it despises every tree. Others render the verse, “Shall we make mirth” (saying), “the rod of my son,” (the rod which corrects my people) “contemneth” (treats with scorn, utterly confounds) “every tree” (every other nation); or, the scepter of my people “contemneth” (proudly despises) every other nation.…”

“to give: Eze 21:19; Jer 25:9, Jer 25:33, Jer 51:20-23 Ezekiel 21:12”