NET
18 As the army approached him, Elisha prayed to the Lord, “Strike these people with blindness.” The Lord struck them with blindness as Elisha requested.
Darby
18 And they came down to him; and Elisha prayed to Jehovah and said, Smite this nation, I pray thee, with blindness. And he smote them with blindness according to the word of Elisha.
KJV
18 And when they came down to him, Elisha prayed unto the LORD, and said, Smite this people, I pray thee, with blindness. And he smote them with blindness according to the word of Elisha.