“Against thee, thee only, have I sinned, and done this evil in thy sight. This verse is differently expounded by different persons, and it has ever been considered, that this one little point is the greatest difficulty that is met with in the whole Psalm. Although, therefore, I leave it to others to go according to their own interpretations, yet I have a good hope that I shall be enabled to give the true and genuine meaning of the text. This, then, I would first of all advise the reader to do—to bear in mind that which I observed at the beginning of the Psalm, that David is here speaking in the person of all the saints, and not in his own person only, not in his own person as an adulterer. Although I do not say it might not be, that it was this fall which, as a medium, brought him under the knowledge of himself and of his whole human nature, and made him think thus: “Behold! I, so holy a king, who have with so much pious devotedness observed the law and the worship of God, have been so tempted and overcome by the inbred evil and sin of my flesh, that I have murdered an innocent man, and have for adulterous purposes taken away his wife! And is not this an evident proof that my nature is more deeply infected and corrupted by sin than ever I thought it was? I who was yesterday chaste am today an adulterer! I who yesterday had hands innocent of blood, am today a man of blood guiltiness!” And it might be that in this way he derived the feeling sense of his entire sinfulness, from his fall into adultery and murder, and from thence drew his conclusion—that neither the tree nor the fruit of human nature were good, but that the whole was so deformed and lost by sin, that there was nothing sound left in the whole of nature. This I would have the reader bear in mind, first of all, if he desire to have the pure meaning of this passage. In the next place, the grammatical construction is to be explained, which seems to be somewhat obscure. For what the translator has rendered by the preterperfect, ought to be the present:Against thee only do I sin; that is, I know that before thee I am nothing but a sinner; or, before thee I do nothing but evil continual; that is, my whole life is evil and depraved on account of sin. I cannot boast before thee of merit or of righteousness, but am evil altogether, and in thy sight this is my character—I do evil. I have sinned, I do sin, and shall sin to the end of the chapter.”

-Martin Luther.

“Against thee, thee only, have I sinned. Is there not matter here to make us at a stand? For, to say, “Against thee have I sinned, “is most just and fit; but to say, Against THEE ONLY I have sinned, seems something hard. It had perhaps been a fit speech in the mouth of our first parent Adam; he might justly have said to God, Against thee only have I sinned, who never sinned against any other; but for us to say it, who commit sins daily against our neighbours, and especially for David to say it, who had committed two notorious sins against his neighbour and faithful friend Uriah, what more unfit speech could possibly be devised? But is it not that these actions of David were great wrongs indeed, and enormous iniquities against Uriah; but can we properly say they were sins against Uriah? For what is sin, but a transgression of God’s law? And how then can sin be committed against any but against him only whose law we transgress? Or is it, that it may justly be said, Against thee only have I sinned, because against others perhaps in a base tenure, yet only against God in capite? Or is it, that David might justly say to God, “Against the only have I sinned; “because from others he might appeal, as being a king and having no superior; but no appealing from God, as being King of kings and supreme Lord over all? Or is it that we may justly say, Against thee, thee only, have I sinned, seeing that Christ hath taken and still takes all our sins upon him; and every sin we commit is as a new burden laid upon his back and upon his back only? Or is it, lastly, that I may justly say, Against thee, the only, have I sinned, because in thy sight only I have done it? For from others I could hide it, and did conceal it? But what can be hidden from the All-seeing eye? And yet if this had been the worst, that I had sinned only against thee, though this had been bad enough, and infinitely too much, yet it might perhaps have admitted reconcilement; but to do this evil in thy sight, as if I should say, I would do it though thou stand thyself and look on, and as if in defiance; what sin so formidable? what sin can be thought of so unpardonable? A sin of infirmity may admit apology; a sin of ignorance may find out excuse; but a sin of defiance can find no defence.”

– Sir Richard Baker.