Daniel 10:11-13

And he said to me, “O Daniel, man greatly beloved, understand the words that I speak to you, and stand upright, for I have now been sent to you.” While he was speaking this word to me, I stood trembling. Then he said to me, “Do not fear, Daniel, for from the first day that you set your heart to understand, and to humble yourself before your God, your words were heard; and I have come because of your words. But the prince of the kingdom of Persia withstood me twenty-one days; and behold, Michael, one of the chief princes, came to help me, for I had been left alone there with the kings of Persia.