John Gills Exposition of the Bible Commentary - Exodus 19:14
And Moses went down from the mount unto the people ,.... The same day that he went up, the fourth day of the month: and sanctified the people ; instructed them and ordered them what they should do for their sanctification, in order to their hearing the law from the mouth of the Lord: and they washed their clothes ; as the Lord had directed Moses to enjoin them, and as he had commanded them; see Gill on Exodus 19:10 . read more
Matthew Henry's Complete Commentary - Exodus 19:9-15
Here, I. God intimates to Moses his purpose of coming down upon mount Sinai, in some visible appearance of his glory, in a thick cloud (Exod. 19:9); for he said that he would dwell in the thick darkness (2 Chron. 6:1), and make this his pavilion (Ps. 18:11), holding back the face of his throne when he set it upon mount Sinai, and spreading a cloud upon it, Job 26:9. This thick cloud was to prohibit curious enquiries into things secret, and to command an awful adoration of that which was... read more