Exodus 34
28 Ref And he is there with Jehovah forty days and forty nights; bread he hath not eaten, and water he hath not drunk; and he writeth on the tables the matters of the covenant -- the ten matters.
29 Ref 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,