Anna Marina, I guess he forgot this point strongly put forth by the WTS
https://wol.jw.org/en/wol/d/r1/lp-e/2017367?q=2+chronicles+20%3A+17&p=sen
2017
Soon the earth will be filled with those who prefer Jehovah’s sovereignty over any other. How we long for that day! With Deborah and Barak, we sing: “Let all your enemies perish, O Jehovah, but let those who love you be like the sun rising in its glory.” (Judg. 5:31) This petition will be answered when Jehovah brings an end to Satan’s wicked world! When the battle of Armageddon begins, there will be no need for human volunteers to rout the enemy. That will be the time for us to “stand still, and see the salvation of Jehovah.” (2 Chron. 20:17
2 Chronicles 20:15-17
He said: “Pay attention, all Judah and you inhabitants of Jerusalem and King Je·hoshʹa·phat! Here is what Jehovah says to you, ‘Do not be afraid or be terrified because of this large crowd, for the battle is not yours but God’s.+ 16 Tomorrow go down against them. They will be coming up by the pass of Ziz, and you will find them at the end of the valley* before the wilderness of Je·ruʹel. 17 You will not need to fight this battle. Take your position, stand still,+ and see the salvation of Jehovah in your behalf.*+ O Judah and Jerusalem, do not be afraid or be terrified.+ Tomorrow go out against them, and Jehovah will be with you.’”+