But Luther did not stop here. On the seventh of August, 1536, a synod was convened at Hamburg to devise the best means of exterminating the Anabaptists…Not one voice among all the delegates was raised in favor of the Anabaptists. Even Melancthon voted to put all those to death who should remain, obstinate in their errors…The ministers of Ulm demanded that heresy should be extinguished by fire and sword. Those of Augsburg said: ‘ If we have not yet sent any Anabaptists to the gibbet, we have at least branded their cheeks with red iron!’ …
From this exceedingly tolerant council emanated the following exceedingly liberal decree…
“”Whoever rejects infant baptism…shall be punished with death,…As for the simple people, who have not preached or administered baptism, but who were seduced to permit themselves to frequent the assemblies of the heretics, if they do not wish to renounce Anabaptism, they shall be scourged, punished with perpetual exile, and even with death if they return three times to the place whence they have been expelled.” (Bennett, pp. 843-845)
Watch various churches wash their hands. "we didn't slaughter anabaptists"
I, Martin Luther, slew all the peasants in the rebellion, for I said that they should be slain; all their blood is upon my head. But I cast it on the Lord God, who commanded me to speak this way (Werke, Erl. Edition, lix, p. 284 ‘Table Talk’ as quoted in Stoddard JL. Rebuilding a Lost Faith, 1922, p.96).
God never spoke to Luther to slaughter.