Daniel 10:12-13

He reassured me by saying, “Daniel, don’t be afraid, for I have come to bring to you the answer to your prayer. From the first day you sought to understand the revelation and humbled yourself before God, your words were heard in heaven. However, for the past twenty-one days, the principality over the kingdom of Persia stood to oppose and resist me. Then Michael, one of the chief princes of heaven, came to my assistance. I was left there, confronting the king of Persia.