2 Kings 6:15-17 NRSV
When an attendant of the man of God rose early in the morning and went out, an army with horses and chariots was all around the city. His servant said, “Alas, master! What shall we do?” He replied, “Do not be afraid, for there are more with us than there are with them.” Then Elisha prayed: “O LORD, please open his eyes that he may see.” So the LORD opened the eyes of the servant, and he saw; the mountain was full of horses and chariots of fire all around Elisha.
NRSV: New Revised Standard Version