"If those clothe God with the garment of a tyrant, who refer the hardening of men even to His eternal counsel, we most certainly are not the originators of this doctrine. If they do God an injury who set His will above all other causes, Paul taught this doctrine long before us. Let these enemies of God, then, dispute the matter with the apostle. For I maintain nothing, in the present discussion, but what I declare is taught by him." -- John Calvin
The following is a quote from John Calvin in Calvin's Calvinism, A Treatise of the Eternal Predestination of God, Section I. Calvin's opponent is Pighius, a man who openly attacked the sovereignty of God and accused the Calvinist view of making God into a tyrant. Here is Calvin's response:
Let us, however, be fully assured that the apostle, in the first place, here curbs with becoming gravity the licentious madness of these men, who make nothing of attacking openly the justice of God; and that, in the next place, he gives to the worshippers of God a more useful counsel of moderation, than if he had taught them to soar on eagles' wings above the forbidden clouds. For that soberness of mind which, regulated by the fear of God, keeps itself within the bounds of comprehension prescribed by Him, is far better than all human wisdom. Let proud men revile this sobriety if they will, calling it ignorance. But let this sober-mindedness ever hold fast that which is the height of all true wisdom; that by holding the will of God to be the highest rule of righteousness, we ascribe to Him His own proper and peculiar glory.
But Pighius and his fellows are not hereby satisfied. For, pretending a great concern for the honour of God, they bark at us, as imputing to Him a cruelty utterly foreign to His nature. Pighius denies that he has any contest with God. What cause, or whose cause is it, then, that Paul maintains? After he had adopted the above axiom "that God hardens whom He will and has mercy on whom He will" he subjoins the supposed taunt of a wicked reasoner: "Why doth He yet find fault? For who hath resisted His will?" (Rom. ix. 19.) He meets such blasphemy as this by simply setting against it the power of God. If those clothe God with the garment of a tyrant, who refer the hardening of men even to His eternal counsel, we most certainly are not the originators of this doctrine. If they do God an injury who set His will above all other causes, Paul taught this doctrine long before us. Let these enemies of God, then, dispute the matter with the apostle. For I maintain nothing, in the present discussion, but what I declare is taught by him. About these barking dogs, however, I would not be very anxious. I am the rather moved with an anxiety about some otherwise good men, who, while they fear lest they should ascribe to God anything unworthy of His goodness, really seem to be horror-struck at that which He declares, by the apostle, concerning Himself.
Now, we are holding fast, all the while, a godly purpose of vindicating the justice of God from all calumny. And the modesty of these timid ones would be worthy of all praise, if it were not the offspring of moroseness, inflated with a certain secret pride. For such men speak according to their own natural sense and understanding. But why do they fear to concede to the power of God that which is beyond the power of their own mind to comprehend, lest His justice should be endangered? Why, I say, is this? It is because they presume to subject the tribunal of God to their own judgment. Now Paul shows us that it is an act of intolerable pride in any man to assume to himself the judgment of his brother, because there is one Judge by whom we all stand or fall, and to whom every knee must bow. What madness is it, then, for a man to raise his crest against this only Judge Himself, and to presume to measure His infinite power by natural sense!