“And he took up his parable, and said, Balaam the son of Beor hath said, and the man whose eyes are open hath said:”
King James Version (KJV)
24:3 Whose eyes are open - Heb. Who had his eyes shut, but now open. The eyes of his mind, which God had opened in a peculiar and prophetical manner, whence prophets are called Seers, #1Sam 9:9|. It implies that before he was blind and stupid, having eyes, but not seeing nor understanding.