David INTENTIONALLY engaged in adultery. He knew Bathsheba was married and took her anyway. He didn't accidentally sleep with her. His sin was an overt act of intent
Please re-read my post, no where in there did I mention David. I did not because I was showing you that you can't lump all these men together.
But if you want to talk about David (and I have to say it really irks me that many Gentiles (Christians) like to bring up this about David, wither intentionally or not it is along the lines of other anti-semetic rhetoric) then let's.
If you read 2nd Samuel you will see that David did not realize his sin, else why would Nathan have to tell him that little story?
1 The L-RD sent Nathan to David. When he came to him, he said, "There were two men in a certain town, one rich and the other poor.
2 The rich man had a very large number of sheep and cattle,
3 but the poor man had nothing except one little ewe lamb he had bought. He raised it, and it grew up with him and his children. It shared his food, drank from his cup and even slept in his arms. It was like a daughter to him.
4 "Now a traveler came to the rich man, but the rich man refrained from taking one of his own sheep or cattle to prepare a meal for the traveler who had come to him. Instead, he took the ewe lamb that belonged to the poor man and prepared it for the one who had come to him."
5 David burned with anger against the man and said to Nathan, "As surely as the L-RD lives, the man who did this deserves to die!
6 He must pay for that lamb four times over, because he did such a thing and had no pity."
7-12 Then Nathan said to David,
"You are the man! This is what the L-RD, the God of Israel, says: 'I anointed you king over Israel, and I delivered you from the hand of Saul. I gave your master's house to you, and your master's wives into your arms. I gave you the house of Israel and Judah. And if all this had been too little, I would have given you even more.
Why did you despise the word of the L-RD by doing what is evil in his eyes? You struck down Uriah the Hittite with the sword and took his wife to be your own. You killed him with the sword of the Ammonites.
Now, therefore, the sword will never depart from your house, because you despised me and took the wife of Uriah the Hittite to be your own.'
"This is what the L-RD says: 'Out of your own household I am going to bring calamity upon you. Before your very eyes I will take your wives and give them to one who is close to you, and he will lie with your wives in broad daylight. You did it in secret, but I will do this thing in broad daylight before all Israel.' "
13 Then David said to Nathan, "I have sinned against the L-RD." Nathan replied,
"The L-RD has taken away your sin. You are not going to die.
14 But because by doing this you have made the enemies of the L-RD show utter contempt, the son born to you will die."
The L-RD took away his sin, but he paid dearly his whole life for it. Once he realized he had sinned he repented but his little lambs lamb died because of it.