NET
29 Now when Moses came down from Mount Sinai with the two tablets of the testimony in his hand—when he came down from the mountain, Moses did not know that the skin of his face shone while he talked with him.
Darby
29 And it came to pass, when Moses came down from mount Sinai and the two tables of testimony were in Moses' hand, when he came down from the mountain that Moses knew not that the skin of his face shone through his talking with him.
KJV
29 And it came to pass, when Moses came down from mount Sinai with the two tables of testimony in Moses' hand, when he came down from the mount, that Moses wist not that the skin of his face shone while he talked with him.