"3. Now if we demanded here, whether it be not lawful to be conversant with the wicked and froward to win them: I answer, yes, verily, until a man find them to be past remedy. For to give over a man at the first dash when he has done amiss, or when he is as it were in the highway to destruction: is a furthering of the destruction of the wretched soul that was redeemed by the bloodshed of our Lord Jesus Christ." Calvin, Sermons on Deuteronomy, Sermon 119, 20:16-20, p., 731.
"However, St. Paul speaks here expressly of the saints and the faithful, but this does not imply that we should not pray generally for all men. For wretched unbelievers and the ignorant have a great need to be pleaded for with God; behold them on the way to perdition. If we saw a beast at the point of perishing, we would have pity on it. And what shall we do when we see souls in peril, which are so precious before God, as he has shown in that he has ransomed them with the blood of his own Son? If we see then a poor soul going thus to perdition, ought we not to be moved with compassion and kindness, and should we not desire God to apply the remedy." Calvin, Sermons on Ephesians, Sermon 47, 6:18-19, pp., 684-5.
"You should have kept silence, says Pighius. It would have been a treacherous and abominable silence by which God's glory, Christ, and the gospel were betrayed. Is it possible? So God shall be held up as a laughingstock before our eyes, all good religion shall be torn apart, wretched souls redeemed by the blood of Christ shall perish, and it shall be forbidden to speak? ...shall the church be plundered by the thieving of the ungodly, shall God's majesty be stamped under foot, shall Christ be robbed of his kingdom, while we watch and say nothing?" Calvin, The Bondage and Liberation of the Will, p., 19.
"Hence it ought to be observed, that whenever the Church is afflicted, the example of the Prophet ought to move us to be touched (sumpatheia) with compassion, if we are not harder than iron; for we are altogether unworthy of being reckoned in the number of the children of God, and added to the holy Church, if we do not dedicate ourselves, and all that we have, to the Church, in such a manner that we are not separate from it in any respect. Thus, when in the present day the Church is afflicted by so many and so various calamities, and innumerable souls are perishing, which Christ redeemed with his own blood, we must be barbarous and savage if we are not touched with any grief. And especially the ministers of the word ought to be moved by this feeling of grief, because, being appointed to keep watch and to look at a distance, they ought also to groan when they perceive the tokens of approaching ruin." Calvin, Isaiah 22:4.
"Behold our Lord Jesus Christ the Lord of glory, abased himself for a time, as says St. Paul. Now if there were no more but this, that he being the fountain of life, became a mortal man, and that he having dominion over the angels of heaven, took upon him the shape of a servant, yea even to shed his blood for our redemption, and in the end to suffer the curse that was due unto us (Gal 3:13): were it convenient that notwithstanding all this, he should nowadays in recompense be torn to pieces, by stinking mouths of such as name themselves Christians? For when they swear by his blood, by his death, by his wounds and by whatsoever else: is it not a crucifying of God's son again as much as in them lies, and as a rending of him in pieces? And are not such folk worthy to be cut off from God's Church, yea, and even from the world, and to be no more numbered in the array of creatures? Should our Lord Jesus have such reward at our hands, for his abasing and humbling of himself after that manner? (Mich 6:30) God in upbraiding his people says thus: My people, what have I done to you? I have brought you out of Egypt, I have led you up with all gentleness and loving-kindness, I have planted you as it were in my own inheritance, to the intent you should have been a vine that should have brought me forth good fruit, and I have tilled thee and manured thee: and must thou now be bitter to me, and bring forth sower fruit to choke me withal? The same belongs to us at this day. For when the son of God, who is ordained to be judge of the world (John 5:22), shall come at the last day: he may well say to us: how now Sirs? You have borne my name, you have been baptised in remembrance of me and record that I was your redeemer, I have drawn you out of the dungeons where into you were plunged, I delivered you from endless death by suffering most cruel death myself, and for the same cause I became man, and submitted myself even to the curse of GOD my father, that you might be blessed by my grace and by my means: and behold the reward that you have yielded me for all this, is that you have (after a sort) torn me in pieces and made a jestingstock of me, and the death that I suffered for you has been made a mockery among you, the blood which is the washing and cleansing of your souls has been as good as trampled under your feet, and to be short, you have taken occasion to ban and blaspheme me, as though I had been some wretched and cursed creature. When the sovereign judge shall charge us with these things, I pray you will it not be as thundering upon us, to ding us down to the bottom of hell? Yes: and yet are there very few that think upon it." Calvin, Sermons on Deuteronomy, Sermon 33, 5:11, p., 196.