2 Kings 6:17-20

Then Elisha prayed, “O LORD, open his eyes and let him see!” The LORD opened the young man’s eyes, and when he looked up, he saw that the hillside around Elisha was filled with horses and chariots of fire. As the Aramean army advanced toward him, Elisha prayed, “O LORD, please make them blind.” So the LORD struck them with blindness as Elisha had asked. Then Elisha went out and told them, “You have come the wrong way! This isn’t the right city! Follow me, and I will take you to the man you are looking for.” And he led them to the city of Samaria. As soon as they had entered Samaria, Elisha prayed, “O LORD, now open their eyes and let them see.” So the LORD opened their eyes, and they discovered that they were in the middle of Samaria.