Mt 23:10
King Nebuchadnezzar, who acted proudly in the Old Testament, was driven out by people for 7 years and lived a painful life, and then he confessed that only God was worthy of praise. (Da 4:25,37)
Da 4:25 That they shall drive thee from men, and thy dwelling shall be with the beasts of the field, and they shall make thee to eat grass as oxen, and they shall wet thee with the dew of heaven, and seven times shall pass over thee, till thou know that the most High ruleth in the kingdom of men, and giveth it to whomsoever he will. 37 Now I Nebuchadnezzar praise and extol and honour the King of heaven, all whose works are truth, and his ways judgment: and those that walk in pride he is able to abase.
The only leader in the world is Christ. (Mt 23:10)
Mt 23:10 Neither be ye called masters: for one is your Master, even Christ.