Daniel 10:20 in the King James Version
Then said he, Knowest thou wherefore I come unto thee? and now will I return to fight with the prince of Persia: and when I am gone forth, lo, the prince of Grecia shall come.
Context
19 He said, “Greatly beloved man, don’t be afraid. Peace be to you. Be strong. Yes, be strong.” When he spoke to me, I was strengthened, and said, “Let my lord speak, for you have strengthened me.”
20 Then he said, “Do you know why I have come to you? Now I will return to fight with the prince of Persia. When I go out, behold, the prince of Greece will come.
21 But I will tell you that which is inscribed in the writing of truth. There is no one who holds with me against these but Michael your prince.