He was very orthodox on the article of original sin; for, he says, the only true opinion on this matter is that of the ancient Church, which is well set forth by the Council of Trent.
The Socinians were far from thinking Grotius so favourable to them: Ruarus writes to one of his friends, "You have reason to think, that hitherto no body has written so learnedly against Socinus, as Grotius: he was always much attached to the doctrine of Christ's divinity, even in his earlier years." Grotius wrote to Walæus[687], in 1611, "I do not look upon the Samosatenians, and others, like them, as Christians, nor even as heretics; for their doctrine is repugnant to the belief of all ages, and all nations. They retain Christianity in name, but destroy it in fact. I therefore make no great difference between them and the Mahometans, who even do not revile Christ." M. Bossuet, tho' far from being prejudiced in favour of Grotius, allows however that he did not deny the divinity of Christ, nor the efficacy of his sacrifice.
In several of his letters he clears himself from the charge of Socinianism in such a manner as leaves us no room to doubt his regarding it as a very dangerous heresy. "I give myself little trouble, he writes to his brother[688], June 4, 1639, about the calumnies spread against me by the worst of men, in relation to Socinianism. They may be easily confuted before equitable judges by the writings which I have already published, and by those I shall yet publish. I have defended the sentiments of the ancient Church concerning the Trinity, Christ's satisfaction, and future punishments, by Scripture and the consent of antiquity; and have confuted the contrary opinions. Calvin might more justly be[689] accused of Arianism, than I of Socinianism." Sorbiere, who had been his Secretary; discovering a great propensity to some opinions of Socinus, Grotius earnestly admonished him[690] to abstain from such dangerous innovation.
One of the principal grounds on which they went, was, as we have already seen, his silence concerning the Trinity, in his book Of the truth of the Christian religion: but he has justified his method in such a manner, that this objection cannot be sustained by an equitable judge: he seems to have foreseen it; for, writing to his brother from his prison at Louvestein whilst he was composing this treatise in Dutch verse, "My intention, he says, is not to explain the doctrines of Christianity, but to make the profane, the Pagans, Jews, and Mahometans acknowledge the truth of the Christian religion, and afterwards have recourse to our sacred books to be informed of its tenets. The Trinity, and Christ's divinity could not be introduced into my arguments; for these doctrines will never bring over unbelievers to the Christian faith, and those who attempt to demonstrate them by other arguments than such as are drawn from scripture, absolutely lose their labour: but the authority of the scriptures being once established, these doctrines ought to be held proved." He omitted therefore all mention of these points, not because he disbelieved them, but because he judged it more proper to prove first the divinity of the sacred books, and the mission of Christ: and, as we have already observed, the same method has been followed by the most successful writers on the Truth of Christianity.
He has been much reproached with his letter to Crellius. Grotius had written against Socinus, and Crellius, to vindicate his master, answered Grotius with a politeness and good-breeding seldom found in a polemical divine. Grotius thought it his duty to reply to him, and the measures he kept with this adversary were looked on by his enemies as a betraying of the truth. Here follows the letter, which has been so much talked of. "I was so far from being offended, most learned Crellius, with your book against mine that I inwardly thanked you at that time, and now do it by this letter, first, for treating me with so much civility, that the only thing I have left to complain of is your complimenting me in some places too much: next for informing me of many very useful and entertaining things, and exciting me by your example, to examine thoroughly into the sense of the sacred scriptures: you judge very rightly of me, that I bear no ill-will to any one who differs from me, without prejudice to religion; nor decline the friendship of any good man. I have found in your book of the True Religion, which I have already gone through, and shall read again, many judicious remarks: and I congratulate the present age, that there are men in it who make religion consist, not so much in subtle controversies as in amendment of life and a continual progress in holiness. God grant that my writings may produce these sentiments in the minds of my readers: I should then think my life not spent in vain. The treatise on the truth of the Christian religion I wrote more for my own satisfaction, than for the instruction of others. I don't see how it can be useful, after so many other works on the same subject, but by its brevity. If there be any thing in it that pleases you, or such as you, it is a happiness beyond my expectation. My great aim, in the Rights of War and Peace, was to suppress, as much as was in my power, that savage barbarity unworthy not only of a Christian, but of a man, which, to the misfortune of nations, is now too common, of beginning and carrying on wars by caprice. I hear with pleasure that this work has got into the hands of Princes: God grant they may retain what is good in it; for that would be the most agreeable fruit I could reap from my labour. If ever any occasion should offer of serving you, of your friends, be assured that I shall be ready to give you proofs of my high esteem. Since I can do no more, I sincerely pray that God would protect you, and those who promote religion."
There is another letter from Grotius to Crellius, which has made much noise. After thanking him for a book he had sent him, he adds, "I am resolved to read your works again and again with care, having already reaped much benefit from them. I have always loved peace, and love it still; and am grieved to see so much enmity between those, who call themselves Christians, for such trifling matters[691]."
Crellius having shewn these letters to several, the Socinians and Grotius's enemies spread a report, that he favoured Socinianism: even extracts of these letters were printed. He protested against the abuse made of them, and maintained[692] that if people would candidly read his works, they would easily be convinced of the injustice of ranking him with Socinians.
It is certain, that, notwithstanding the terms which he makes use of in writing to Crellius, he did not at bottom approve of his book: he writes thus in confidence to his brother[693], "I have read Crellius's book: he writes with candour, and doth not want learning; but I cannot see how he will promote religion by departing from the Scripture manner of speaking authorised by antiquity."
"If I have not answered Crellius, he says in another letter[694], it was for prudential reasons, and even by the advice of the Protestants of France, who think that the questions being unknown in this country, ought not to be made public by a confutation. It is easy to refute them with glory, though every one is not capable of it: but, it is still better that they should remain unknown." He speaks, in the same letter, of Socinus as a man very little versed in the sentiments of antiquity, and whose errors he had confuted in many of his works. "Must I also excuse myself, he asks, for not shutting my door against Martinus Ruarus, who desired to see me? The time was not lost that I spent in conversing with him, nor am I sorry for his visit. I acquainted him with my reasons for enquiring into the opinions of the ancient Churches, and for following them: I shewed him that the doctrine of satisfaction was no ways contrary to reason, even in the judgment of the Jews, and brought him some signal proofs of it. I did not conceal what violence it was to the Scripture, and of how dangerous consequence, to deny the eternity of hell torments; and I flatter myself I advanced more with him, than those would have done who abound in reproaches; nor do I see why I should abstain from writing to him, when I find the pillars of the Greek Church corresponding by letters even with Pagans. For my part, I am resolved and accustomed to preserve friendship for all men, particularly Christians, although erring; and I shall never blush at it."
He advances almost the same reasons to clear himself from the charge of Socinianism, in a long letter to Gerard Vossius[695], of which we shall make no extract to avoid repetitions.