And the Lord said unto me
 The omniscient God, who knew what was doing in the camp of Israel, though Moses did not, of which he informs him: 
 arise, get thee down quickly from hence;
 from the mount where he was; and the word "arise" does not suppose him to be sitting or lying along, neither of which postures would have been suitable, considering in whose presence he was; but is only expressive of urgency and haste of his departure; it is not used in ( Exodus 32:7 ) 
 for thy people, which thou hast brought forth out of Egypt, have
 corrupted themselves;
 their way, as the Targum of Jonathan; that is, by idolatry, than which nothing is more corrupting and defiling; the Lord calls them not his people, but the people of Moses, being highly displeased with them; and ascribes their coming out of Egypt to Moses the instrument, and not to himself, as if he repented of bringing them from thence: 
 they are quickly turned aside out of the way which I commanded them:
 it being but about six weeks ago, that the command forbidding idolatry, the sin they had fallen into, had been given them: 
 and they have made them a molten image;
 the image of a calf made of melted gold.