Daniel 10:17-21

For how can such a servant of my lord talk with such as my lord? As for me, there remains just now no strength in me, nor has any breath been left in me.”

Then this one with human appearance touched me again and strengthened me.

And he said, “You who are treasured, do not be afraid. Peace be to you; take courage and be courageous!” Now as soon as he spoke to me, I felt strengthened and said, “May my lord speak, for you have strengthened me.”

Then he said, “Do you understand why I came to you? But I shall now return to fight against the prince of Persia; so I am leaving, and behold, the prince of Greece is about to come.

However, I will tell you what is recorded in the writing of truth. Yet there is no one who stands firmly with me against these forces except Michael your prince.