Daniel 10:13

13 But the prince of Persia has been fighting against me for twenty-one days. Then Michael, one of the most important angels, came to help me, because I had been left there with the king of Persia.

Daniel 10:13 In-Context

11 The man in the vision said to me, "Daniel, God loves you very much. Think carefully about the words I will speak to you, and stand up, because I have been sent to you." When he said this, I stood up, but I was still shaking.
12 Then the man said to me, "Daniel, do not be afraid. Some time ago you decided to get understanding and to humble yourself before your God. Since that time God has listened to you, and I have come because of your prayers.
13 But the prince of Persia has been fighting against me for twenty-one days. Then Michael, one of the most important angels, came to help me, because I had been left there with the king of Persia.
14 Now I have come to explain to you what will happen to your people, because the vision is about a time in the future."
15 While he was speaking to me, I bowed facedown and could not speak.
Scripture taken from the New Century Version. Copyright © 1987, 1988, 1991 by Thomas Nelson, Inc. Used by permission. All rights reserved.