10 And he said, Behold, I make a covenant: before all thy people I will do marvels that have not been done in all the earth, nor in any nation; and all the people in the midst of which thou [art] shall see the work of Jehovah; for a terrible thing it shall be that I will do with thee.
Matthew Henry's Commentary on Exodus 34:10
Commentary on Exodus 34:10-17
(Read Exodus 34:10-17)
The Israelites are commanded to destroy every monument of idolatry, however curious or costly; to refuse all alliance, friendship, or marriage with idolaters, and all idolatrous feasts; and they were reminded not with idolaters, and all idolatrous feats; and they were reminded not to repeat the crime of making molten images. Jealously is called the rage of a man, Proverbs 6:34; but in God it is holy and just displeasure. Those cannot worship God aright, who do not worship him only.