Daniel 10:21

Then he made me understand and spoke with me and said, “O Daniel, I have now come forth to give you insight with understanding.

“But the prince of the kingdom of Persia was standing against me for twenty-one days; then behold, Michael, one of the chief princes, came to help me. Now I had been left there with the kings of Persia.

“So now I will tell you the truth. Behold, three more kings are going to stand in Persia. Then a fourth will gain far more riches than all of them; as soon as he becomes strong through his riches, he will arouse the whole empire against the kingdom of Greece.

“Now at that time, Michael, the great prince who stands guard over the sons of your people, will stand. And there will be a time of distress such as never happened since there was a nation until that time; and at that time your people, everyone who is found written in the book, will be rescued.

But Michael the archangel, when he, disputing with the devil, was arguing about the body of Moses, did not dare pronounce against him a blasphemous judgment, but said, “The Lord rebuke you!”

And there was war in heaven, Michael and his angels waging war with the dragon. The dragon and his angels waged war,