2 Samuel 11:3

It would be better for the sun to be extinguished than for David's words to be forgotten and not transmitted to others. He fell into adultery and envy. For he saw, he says, a beautiful woman bathing and became enamored of her; and later he succeeded in doing all that he fancied.And the prophet was found in adultery, the pearl in mud. However, he did not yet understand that he had sinned, the passion ravaged him to such a great extent. Because, when the charioteer gets drunk, the chariot moves in an irregular, disorderly manner. What the charioteer is to the chariot, the soul is to the body. If the soul becomes darkened, the body rolls in mud. As long as the charioteer stands firm, the chariot drives smoothly. However, when he becomes exhausted and is unable to hold the reins firmly, you see this very chariot in terrible danger. This exact same thing happens to human beings. As long as the soul is sober and vigilant, this very body remains in purity. However, when the soul is darkened, this very body rolls in mud and in lusts. Therefore, what did David do? He committed adultery; yet neither was he aware nor was he censured by anyone. This occurred in his most venerable years, so you may learn that, if you are indolent, not even old age benefits you, nor, if you are earnest, can youthful years seriously harm you. Behavior does not depend on age but on the direction of the will.… So you may learn that the affairs of prudence rely upon the will and do not depend on age, just remember that David was found in his venerable years falling into adultery and committing murder; and he reached such a pathetic state that he was unaware that he had sinned, because his mind, which was the charioteer, was drunk from debauchery.

We have taken up the task of writing an apology for the present style of the prophet David, not because he needs this gift, who has excelled in such great merits and flourished in virtues, but because many people, reading the sequence of his deeds without considering the power of the Scriptures or the hidden mysteries, wonder how such a great prophet did not avoid the contagion of adultery first and then of murder. Therefore, it was our desire to review the history itself, which seems to have been exposed to sin.

He inquired - Instead of suppressing that desire which the sight of his eyes had kindled, he seeks rather to feed it; and first inquires who she was; that if she were unmarried, he might make her either his wife or his concubine.

And David sent and inquired after the woman,....

But, (3.) When she came he lay with her, she too easily consenting, because he was a great man, and famed for his goodness too. Surely (thinks she) that can be no sin which such a man as David is the mover of. See how the way of sin is down-hill; when men begin to do evil they cannot soon stop themselves.