14 So one night the king of Aram sent a great army with many chariots and horses to surround the city. 15 When the servant of the man of God got up early the next morning and went outside, there were troops, horses, and chariots everywhere. "Oh, sir, what will we do now?" the young man cried to Elisha. 16 "Don't be afraid!" Elisha told him. "For there are more on our side than on theirs!" 17 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. 18 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.
Matthew Henry's Commentary on 2 Kings 6:14-18
Commentary on 2 Kings 6:13-23
(Read 2 Kings 6:13-23)
What Elisha said to his servant is spoken to all the faithful servants of God, when without are fightings, and within are fears. Fear not, with that fear which has torment and amazement; for they that are with us, to protect us, are more than they that are against us, to destroy us. The eyes of his body were open, and with them he saw the danger. Lord, open the eyes of our faith, that with them we may see thy protecting hand. The clearer sight we have of the sovereignty and power of Heaven, the less we shall fear the troubles of earth. Satan, the god of this world, blinds men's eyes, and so deludes them unto their own ruin; but when God enlightens their eyes, they see themselves in the midst of their enemies, captives to Satan, and in danger of hell, though, before, they thought their condition good. When Elisha had the Syrians at his mercy, he made it appear that he was influenced by Divine goodness as well as Divine power. Let us not be overcome of evil, but overcome evil with good. The Syrians saw it was to no purpose to try to assault so great and so good a man.