The Spirit of God came upon him And is it likely that the Spirit of God would have come upon a sorcerer or enchanter? A prophetic influence from God came upon him, whereby he was enabled to foresee future events, and inspired to utter the following words: The man whose eyes are open Some, confounding שׁתם shetum, with סתם, or שׂתם setum, would translate the words, Whose eyes are or were shut, for which there does not seem to be sufficient authority. The Seventy render them, ο αληθινως ορων, seeing truly. His eyes indeed had been shut, and he had been blind and stupid, having eyes but not seeing, nor understanding; but God had opened them in a peculiar and prophetical manner. Hence the prophets were called seers, from God's having opened their eyes.
Related Commentaries of Numbers 24:2
Numbers 24:2-3
2 And Balaam lifted up his eyes, and he saw Israel abiding in his tents according to their tribes; and the spirit of God came upon him.
3 And he took up his parable, and said, Balaam the son of Beor hath said, and the man whose eyes are open hath said: