The most detestable wickedness, the most horrid cruelties, and the greatest miseries, that have afflicted the human race have had their origin in this thing called revelation, or revealed religion. It has been the most dishonourable belief against the character of the divinity, the most destructive to morality, and the peace and happiness of man, that ever was propagated since man began to exist. It is better, far better, that we admitted, if it were possible, a thousand devils to roam at large, and to preach publicly the doctrine of devils, if there were any such, than that we permitted one such impostor and monster as Moses, Joshua, Samuel, and the Bible prophets, to come with the pretended word of God in his mouth, and have credit among us.Whence arose all the horrid assassinations of whole nations of men, women, and infants, with which the Bible is filled; and the bloody persecutions, and tortures unto death and religious wars, that since that time have laid Europe in blood and ashes; whence arose they, but from this impious thing called revealed religion, and this monstrous belief that God has spoken to man? The lies of the Bible have been the cause of the one, and the lies of the Testament of the other.

Loving, of enemies is another dogma of feigned morality, and has besides no meaning. It is incumbent on man, as a moralist, that he does not revenge an injury; and it is equally as good in a political sense, for there is no end to retaliation; each retaliates on the other, and calls it justice: but to love in proportion to the injury, if it could be done, would be to offer a premium for a crime. Besides, the word enemies is too vague and general to be used in a moral maxim, which ought always to be clear and defined, like a proverb. If a man be the enemy of another from mistake and prejudice, as in the case of religious opinions, and sometimes in politics, that man is different to an enemy at heart with a criminal intention; and it is incumbent upon us, and it contributes also to our own tranquillity, that we put the best construction upon a thing that it will bear. But even this erroneous motive in him makes no motive for love on the other part; and to say that we can love voluntarily, and without a motive, is morally and physically impossible.Morality is injured by prescribing to it duties that, in the first place, are impossible to be performed, and if they could be would be productive of evil; or, as before said, be premiums for crime. The maxim of doing as we would be done unto does not include this strange doctrine of loving enemies; for no man expects to be loved himself for his crime or for his enmity.Those who preach this doctrine of loving their enemies, are in general the greatest persecutors, and they act consistently by so doing; for the doctrine is hypocritical, and it is natural that hypocrisy should act the reverse of what it preaches. For my own part, I disown the doctrine, and consider it as a feigned or fabulous morality; yet the man does not exist that can say I have persecuted him, or any man, or any set of men, either in the American Revolution, or in the French Revolution; or that I have, in any case, returned evil for evil.

There are matters in that book, said to be done by the express command of God, that are as shocking to humanity, and to every idea we have of moral justice, as any thing done by Robespierre, by Carrier, by Joseph le Bon, in France, by the English government in the East Indies, or by any other assassin in modern times. When we read in the books ascribed to Moses, Joshua, etc., that they (the Israelites) came by stealth upon whole nations of people, who, as the history itself shews, had given them no offence; that they put all those nations to the sword; that they spared neither age nor infancy; that they utterly destroyed men, women and children; that they left not a soul to breathe; expressions that are repeated over and over again in those books, and that too with exulting ferocity; are we sure these things are facts? are we sure that the Creator of man commissioned those things to be done? Are we sure that the books that tell us so were written by his authority?...The Bible tells us, that those assassinations were done by the express command of God. And to read the Bible without horror, we must undo every thing that is tender, sympathising, and benevolent in the heart of man. Speaking for myself, if I had no other evidence that the Bible is fabulous, than the sacrifice I must make to believe it to be true, that alone would be sufficient to determine my choice.

I will conclude this work with stating in what light religion appears to me.If we suppose a large family of children, who, on any particular day, or particular circumstance, made it a custom to present to their parents some token of their affection and gratitude, each of them would make a different offering, and most probably in a different manner. Some would pay their congratulations in themes of verse and prose, by some little devices, as their genius dictated, or according to what they thought would please; and, perhaps, the least of all, not able to do any of those things, would ramble into the garden, or the field, and gather what it thought the prettiest flower it could find, though, perhaps, it might be but a simple weed. The parent would be more gratified by such a variety, than if the whole of them had acted on a concerted plan, and each had made exactly the same offering. This would have the cold appearance of contrivance, or the harsh one of control. But of all unwelcome things, nothing could more afflict the parent than to know, that the whole of them had afterwards gotten together by the ears, boys and girls, fighting, scratching, reviling, and abusing each other about which was the best or the worst present.Why may we not suppose, that the great Father of all is pleased with variety of devotion; and that the greatest offence we can act, is that by which we seek to torment and render each other miserable? For my own part, I am fully satisfied that what I am now doing, with an endeavour to conciliate mankind, to render their condition happy, to unite nations that have hitherto been enemies, and to extirpate the horrid practice of war, and break the chains of slavery and oppression is acceptable in his sight, and being the best service I can perform, I act it cheerfully.I do not believe that any two men, on what are called doctrinal points, think alike who think at all. It is only those who have not thought that appear to agree…As to what are called national religions, we may, with as much propriety, talk of national Gods. It is either political craft or the remains of the Pagan system, when every nation had its separate and particular deity…