The host of heaven — Those glorious creatures, which are to be admired as the wonderful works of God, but not to be set up in God's stead. By condemning the most specious of all idolaters, he intimates, how absurd a thing it is to worship stocks and stones, the works of men's hands. I have not commanded — That is, I have forbidden. Such negative expressions are emphatical.
Related Commentaries of Deuteronomy 17:3
Deuteronomy 17:3
3 And hath gone and served other gods, and worshipped them, either the sun, or moon, or any of the host of heaven, which I have not commanded;