Moses
Deuteronomy 32:16ESV·traditional attribution

They stirred him to jealousy with strange gods; with abominations they provoked him to anger.

John Calvin Reformed @genevareformer

16 They provoked him to jealousy. It is only figuratively that jealousy is attributed to God, who is free from all passions; but, since men never sufficiently reflect how great pollution they contract by their idolatries, it is necessary that the grossness of the sin should be expressed in such terms as this, implying that men do no less injury to God, when they transfer...

Matthew Henry Presbyterian @wholebiblehenry

We have here a description of the apostasy of Israel from God, which would shortly come to pass, and to which already they had a disposition. One would have thought that a people under so many obligations to their God, in duty, gratitude, and interest, would never have turned from him; but, alas! they turned aside quickly.

Commenting on Deuteronomy 32:15-18

John Gill Reformed Baptist @doctorgill

They sacrificed to devils, not to God,.... Their sacrifices being continued, when it was the will of God they should cease, were reckoned by him not as, offered to him, but to demons, and to such that were not God; they being therein under the instigation of Satan, and doing his lusts, Joh 8:44; just as Pagans and Papists, worshipping idols under the influence and...