John Gill, on Jer 27:8

And it shall come to pass, that the nation and kingdom which will not serve the same Nebuchadnezzar the king of Babylon,.... Will not, upon his approaching to them, invading and besieging them, submit and become tributary to him, as is more fully expressed in the next clause: and that will not put their neck under the yoke of the king of Babylon; or voluntarily become subject to him, and pay a tax he shall impose upon them. This refers to, and explains the symbol of, Jeremiah's making and wearing yokes, Jer 27:2; that nation will I punish, saith the Lord, with the sword, and with the famine, and with the pestilence; with one judgment after another; some will perish by the sword of the enemy, sallying out upon them, or endeavouring to make their escape; others by famine their provisions being spent through the length of the siege; and others by pestilence, or the plague, by the immediate hand of God: until I have consumed them by his hand; Nebuchadnezzar's; by means of him; by his sword, and strait besieging them; or, "into his hand"; and so the Targum, "until I have delivered them into his hand;'' having consumed multitudes by the sword, famine, and pestilence, will deliver the rest into his hands to be carried captive by him.