31 While the words were still in the king's mouth, there fell a voice from heaven, "O King Nebuchadnez'zar, to you it is spoken: The kingdom has departed from you, 32 and you shall be driven from among men, and your dwelling shall be with the beasts of the field; and you shall be made to eat grass like an ox; and seven times shall pass over you, until you have learned that the Most High rules the kingdom of men and gives it to whom he will." 33 Immediately the word was fulfilled upon Nebuchadnez'zar. He was driven from among men, and ate grass like an ox, and his body was wet with the dew of heaven till his hair grew as long as eagles' feathers, and his nails were like birds' claws.
34 At the end of the days I, Nebuchadnez'zar, lifted my eyes to heaven, and my reason returned to me, and I blessed the Most High, and praised and honored him who lives for ever; for his dominion is an everlasting dominion, and his kingdom endures from generation to generation;
Matthew Henry's Commentary on Daniel 4:31-34
Commentary on Daniel 4:28-37
(Read Daniel 4:28-37)
Pride and self-conceit are sins that beset great men. They are apt to take that glory to themselves which is due to God only. While the proud word was in the king's mouth, the powerful word came from God. His understanding and his memory were gone, and all the powers of the rational soul were broken. How careful we ought to be, not to do any thing which may provoke God to put us out of our senses! God resists the proud. Nebuchadnezzar would be more than a man, but God justly makes him less than a man. We may learn to believe concerning God, that the most high God lives for ever, and that his kingdom is like himself, everlasting, and universal. His power cannot be resisted. When men are brought to honour God, by confession of sin and acknowledging his sovereignty, then, and not till then, they may expect that God will honour them; not only restore them to the dignity they lost by the sin of the first Adam, but add excellent majesty to them, from the righteousness and grace of the Second Adam. Afflictions shall last no longer than till they have done the work for which they were sent. There can be no reasonable doubt that Nebuchadnezzar was a true penitent, and an accepted believer. It is thought that he did not live more than a year after his restoration. Thus the Lord knows how to abase those that walk in pride, but gives grace and consolation to the humble, broken-hearted sinner who calls upon Him.