It seems that I was wrong about David sinning against You.
“And it came to pass, after the year was expired, at the time when kings go forth to battle, that David sent Joab (he was like a 5 star general), and his servants with him, and all Israel; and they destroyed the children of Ammon, and besieged Rabbah. But David tarried still at Jerusalem.
And it came to pass in an evening tide, that David arose from off his bed, and walked upon the roof of the king’s house: and from the roof he saw a woman washing herself; and the woman was very beautiful to look upon.
And David sent and enquired after the woman. And one said, Is not this Bath-sheba, the daughter of Eliam, the wife of Uriah the Hittite? (Uriah is also one of his top soldiers).
And David sent messengers, and took her; and she came in unto him, and he lay with her; for she was purified from her uncleanness: and she returned unto her house.
And the woman conceived, and sent and told David, and said, I am with child.
And David sent to Joab, saying, Send me Uriah the Hittite. And Joab sent Uriah to David.
And when Uriah was come unto him, David demanded of him how Joab did, and how the people did, and how the war prospered.
And David said to Uriah, Go down to thy house, and wash thy feet. And Uriah departed out of the king’s house, and there followed him a mess of meat from the king.
But Uriah slept at the door of the king’s house with all the servants of his lord, and went not down to his house.
And when they had told David, saying, Uriah went not down unto his house, David said unto Uriah, Camest thou not from thy journey? Why then didst thou not go down unto thine house?
And Uriah said unto David, The ark, and Israel, and Judah, abide in tents; and my lord Joab, and the servants of my lord, are encamped in the open fields; shall I then go into mine house, to eat and to drink, and to lie with my wife? As thou livest, and as thy soul liveth, I will not do this thing.
And David said to Uriah, Tarry here today also, and tomorrow I will let thee depart. So Uriah abode in Jerusalem that day, and the morrow.
And when David had called him, he did eat and drink before him; and he made him drunk: and at even he went out to lie on his bed with the servants of his lord, but went not down to his house.
And it came to pass in the morning, that David wrote a letter to Joab, and sent it by the hand of Uriah” (2 Sam 11:1-14).
You wouldn’t expect David to do what he’s about to do, this is something that the our government would do, and probably does. But David’s actions go beyond that.
“And he wrote in the letter, saying, Set ye Uriah in the forefront of the hottest battle, and retire ye from him, that he may be smitten, and die.
And it came to pass, when Joab observed the city, that he assigned Uriah unto a place where he knew that valiant men were.
And the men of the city went out, and fought with Joab: and there fell some of the people of the servants of David; and Uriah the Hittite died also. Then Joab sent and told David all the things concerning the war” (2 Sam 11:15-18).
And the messenger said unto David, Surely the men prevailed against us, and came out unto us into the field, and we were upon them even unto the entering of the gate.
And the shooters shot from off the wall upon thy servants; and some of the king’s servants be dead, and thy servant Uriah the Hittite is dead also.
Then David said unto the messenger, Thus shalt thou say unto Joab, Let not this thing displease thee, for the sword devoureth one as well as another: make thy battle more strong against the city, and overthrow it: and encourage thou him.
And when the wife of Uriah heard that Uriah her husband was dead, she mourned for her husband.
And when the mourning was past, David sent and fetched her to his house, and she became his wife, and bare him a son. But the thing that David had done displeased the LORD (2 Sam 11:23-27).
David loved God, but even so he didn’t think about how God must have felt by his actions, he only thought about how bad he would look to the people if they knew that he had committed adultery.
The description of Bathsheba’s bathing in 2 Sam 11:2 employs the verb rahas — “to wash” — which, when used alone, implies “to bathe the entire body.”
When limited to a portion of the body, the intended body part is stipulated. Thus, we know from the grammar (as well as from the context) that Bathsheba was bathing.
The text informs us that she was purifying herself from her uncleanness, indicating that she had just completed her menstrual cycle.
While no such ordinance exists in the relevant texts of Lev 15:19-24, it appears that Bathsheba was bathing for ritual or hygienic purposes.
Ritual purity was achieved partly by bathing, as is seen in the directive given to Aaron and his sons (Lev 8:6).
Such practices among the priesthood are also attested in Egypt, where the priests were instructed to bathe three times daily to remove physical pollution and to attain a spiritual life.
Purification from defilement among laity and priests alike often involved the washing of the body (e.g., Lev 15:18, 21).
Washing the feet, attested many times in both the Old Testament and the New Testament (most notably Jn 13:1-17), must have been a common occurrence in Israel.
While Rabbinical texts that speak of the necessity of washing the hands before eating (e.g., Matt 15:2) probably have roots in an earlier era, it is uncertain how far back these traditions extend.
How widespread and frequent non-ceremonial bathing was in Israel is impossible to determine.
The Old Testament accounts of such bathing undertaken by David (2 Sam 12:20), Ruth (Ruth 3:3), Samarian harlots (1 Kgs 22:38), Naaman (2 Kgs 5:10) and the allegorical Oholah and Oholibah (Eze 23:40) indicate that the practice was fairly common and not exclusive to members of the upper class.
Further indication comes from the Phoenician town Achzib. An 8th-7th century B.C. terracotta figurine depicting a woman bathing while sitting in an oval bathtub was unearthed there.
This, too, suggests that bathing was widely practiced.