NASB 1995
It came about when Moses was coming down from Mount Sinai (and the two tablets of the testimony were in Moses' hand as he was coming down from the mountain), that Moses did not know that the skin of his face shone because of his speaking with Him.

American Standard Version
And it came to pass, when Moses came down from mount Sinai with the two tables of the testimony in Moses hand, when he came down from the mount, that Moses knew not that the skin of his face shone by reason of his speaking with him.

Berean Study Bible
And when Moses came down from Mount Sinai with the two tablets of the Testimony in his hands, he was unaware that his face had become radiant from speaking with the LORD.

Douay-Rheims Bible
And when Moses came down from the mount Sinai, he held the two tables of the testimony, and he knew not that his face was horned from the conversation of the Lord.

English Revised Version
And it came to pass, when Moses came down from mount Sinai with the two tables of the testimony in Moses' hand, when he came down from the mount, that Moses wist not that the skin of his face shone by reason of his speaking with him.

King James Bible
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.

World English Bible
It happened, when Moses came down from Mount Sinai with the two tablets of the testimony in Moses' hand, when he came down from the mountain, that Moses didn't know that the skin of his face shone by reason of his speaking with him.

Young's Literal Translation
And it cometh to pass, when Moses is coming down from mount Sinai (and the two tables of the testimony are in the hand of Moses in his coming down from the mount), that Moses hath not known that the skin of his face hath shone in His speaking with him,

Exodus 34:29 Additional Translations ...