The worldly nations would like to block the enthroned Jesus Christ from ruling over mankind. They would like to limit his rulership to heaven and to keep rulership of the earth for themselves perpetually. So the cause of truth, humility and righteousness is implicated. Because the worldly nations have taken such an unyielding stand since the Gentile Times ended in 1914, they will have to reckon with Jesus Christ in a violent war.

And in your splendor go on to success; ride in the cause of truth and humility and righteousness, and your right hand will instruct you in fear-inspiring things. Your arrows are sharp​—under you peoples keep falling—​in the heart of the enemies of the king.”​—Ps. 45:3-5.

15. In contrast with his triumphal ride into Jerusalem, why will Jesus Christ ride a horse when reckoning with the nations?

¹⁵ Once, like King Solomon at his coronation, Jesus Christ rode a peaceful ass when he made his triumphal entry into Jerusalem, offering himself to her as the king of David’s line. (Matt. 21:1-14; Zech. 9:9) But when, shortly, he rides forth in the cause of truth, humility and righteousness, he will, figuratively speaking, ride a war steed. Properly so, for he has a reckoning to carry out with those who violate truth, humility and righteousness.

16. What truth have national governments trampled underfoot despite notification by Jehovah’s Witnesses?

¹⁶ A few days after Jesus rode the ass into Jerusalem, he told Governor Pilate that he had come into the world to bear witness to the truth. That was primarily the truth about God’s kingdom, about which he had just borne witness to Pilate. (1 Tim. 6:13) Today the governments of nations trample that truth underfoot, even though Jehovah by His witnesses has notified them that the Gentile Times of world domination by them ran out in 1914.

17. The cause of what class has Jesus Christ championed, and why must he fight for a new order of righteousness?

¹⁷ Worldly rulers show no humility before God. They do not yield peacefully to earth’s rightful King, Jesus Christ, who showed the greatest humility before God and who championed all the helpless humble ones on earth, especially his persecuted disciples. Now in these “last days” man’s unrighteousness has “gone to seed,” with more and more lawlessness spreading alarmingly. Mankind needs to be given a new start in righteousness. Hence, the Warrior King Jesus Christ must ride in the cause of righteousness and fight for the establishment of a new order over all the earth.​—Isa. 26:9.

18. What warning is given to the nations by the words to the King, “your right hand will instruct you in fear-inspiring things,” and how is the wholesale slaughter indicated in Psalm 45:5?

¹⁸ In modern times, warfare has gone far beyond the use of swords and arrows. Military superpowers now count on using nuclear and neutron bombs and intercontinental ballistic missiles. But they should not think that the glorified Jesus Christ cannot surprise them with scientific weapons of war even superior to theirs. Psalm 45:4 sounds the warning to the nations that Christ’s right hand will instruct him in “fear-inspiring things.” His superhuman missiles will not be less accurate than man-made missiles in striking their human targets. With deadly aim, they will hit “the heart of the enemies of the king.” The wholesale slaughter resulting is indicated by the wartime news release that under him “peoples keep falling” in his fight for truth, humility and righteousness.​—Ps. 45:5.