Luther is addressing the uprising of the peasants. It has nothing to do with anything about God. It is a political polemic couched in religious language. His vehement railings preciptated the deaths of thousands of Peasants.
Luthers writings against the Jews were the seeds of the Nazi holocaust:
I had made up my mind to write no more either about the Jews or against them. But since I learned that these miserable and accursed people do not cease to lure to themselves even us, that is, the Christians, I have published this little book, so that I might be found among those who opposed such poisonous activities of the Jews who warned the Christians to be on their guard against them. I would not have believed that a Christian could be duped by the Jews into taking their exile and wretchedness upon himself. However, the devil is the god of the world, and wherever God’s word is absent he has an easy task, not only with the weak but also with the strong. May God help us. Amen.
He did not call them Abraham’s children, but a “brood of vipers” [Matt. 3:7]. Oh, that was too insulting for the noble blood and race of Israel, and they declared, "He has a demon’ [Matt 11:18]. Our Lord also calls them a “brood of vipers”; furthermore in John 8 :39,44] he states: "If you were Abraham’s children ye would do what Abraham did… You are of your father the devil. It was intolerable to them to hear that they were not Abraham’s but the devil’s children, nor can they bear to hear this today.
Therefore the blind Jews are truly stupid fools…
Now just behold these miserable, blind, and senseless people.
…their blindness and arrogance are as solid as an iron mountain.
Learn from this, dear Christian, what you are doing if you permit the blind Jews to mislead you. Then the saying will truly apply, “When a blind man leads a blind man, both will fall into the pit” [cf. Luke 6:39]. You cannot learn anything from them except how to misunderstand the divine commandments…
Therefore be on your guard against the Jews, knowing that wherever they have their synagogues, nothing is found but a den of devils in which sheer self*glory, conceit, lies, blasphemy, and defaming of God and men are practiced most maliciously and veheming his eyes on them."
Yes, we could get into vile persons calling themselves Catholics that sin against God and their fellow man as did Luther. But I am not promoting that any such wrongdoers be proclaimed as saints, as you are of Luther.