Deuteronomy 9:12

12 and he said to me, Rise thou, and go down from hence soon, for thy people, that thou hast led out of Egypt, have forsaken swiftly the way that thou showedest to them, and they have made to them[selves] a molten calf. (and he said to me, Rise thou up, and quickly go down from here, for thy people, whom thou hast led out of Egypt, have already forsaken the way that thou hast shown them, and they have cast an idol for themselves, yea, a metal calf.)

Deuteronomy 9:12 Meaning and Commentary

Deuteronomy 9:12

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.

Deuteronomy 9:12 In-Context

10 And the Lord gave to me two tables of stone, ever either written with God's finger, and containing all the words which he spake to you in the hill, from the midst of the fire, when the company of people was gathered together. (And the Lord gave me the two stone tablets, each written with the finger of God, and containing all the words which he spoke to you from the midst of the fire, when the congregation of the people was gathered together there at the mountain.)

11 And when forty days and so many nights had passed, the Lord gave to me (the) two tables of stone, (the) tables of the bond of peace; (And so when forty days and as many nights had passed, the Lord gave me the two stone tablets, the tablets of the covenant;)

12 and he said to me, Rise thou, and go down from hence soon, for thy people, that thou hast led out of Egypt, have forsaken swiftly the way that thou showedest to them, and they have made to them[selves] a molten calf. (and he said to me, Rise thou up, and quickly go down from here, for thy people, whom thou hast led out of Egypt, have already forsaken the way that thou hast shown them, and they have cast an idol for themselves, yea, a metal calf.)

13 And again the Lord said to me, I see that this people is of an hard noll; (And again the Lord said to me, I see that this people be stubborn/be stiff-necked;)

14 suffer thou me, that I all-break him, and do away his name from under heaven; and I shall ordain thee on a folk which is greater and stronger than this folk. (allow me to all-break them, and do away their name from under heaven; and then I shall ordain thee upon a nation which shall be greater and stronger than this nation.)