I love this:

2 Kings 6:15-17

Early the next morning, when the attendant of the man of God arose and went out, he saw the force with its horses and chariots surrounding the city. "Alas!" he said to Elisha. "What shall we do, my lord?"

"Do not be afraid," Elisha answered. "Our side outnumbers theirs."

Then he prayed, "O LORD, open his eyes, that he may see." And the LORD opened the eyes of the servant, so that he saw the mountainside filled with horses and fiery chariots around Elisha.