If there be a prophet... — Better, If there be to (or, among) ycu a prophet of Jehovah, I will make myself known unto him in a vision, and speak unto him. The LXX. and Vulgate connect the word “Jehovah” with the former, not with the latter part of the clause. The mode of communication between God and Moses differed in the respects which are enumerated in Numbers 12:8 from the mode of communication by visions or dreams, in which God communicated His will to others.
Related Commentaries of Numbers 12:6
Numbers 12:6
6 And he said, Hear now my words: If there be a prophet among you, I the LORD will make myself known unto him in a vision, and will speak unto him in a dream.