David not going to battle with his warriors exposed him to temptation. His sin was that of adultery and murder and involving someone else in his crime. Uriah's loyalty and bravery stand out as a bright light in this dark scene (2 Samuel 11:11 ). It is not without
significance that more space is given to David's fall than to his victories. Lessons for us include:-
Nathan brought home to the king the enormity of his sin. What is hid from public view is open before Him.
7. FAILING KINGSHIP (2 Samuel 11:1 to 12:31)
7.1. MORAL DISOBEDIENCE DISPLEASES THE LORD (2
Samuel 11:1-27)

Sexual relations out of marriage is sin. 
Holding high office or position does not exempt obedience to God's Word. 
Adultery is forbidden by the law (Exodus 20:14; Leviticus 20:10 ). 
All promiscuous immoral behaviour displeases God. 7.2. SIN MUST BE CONFRONTED BRAVELY BY GOD'S
MESSENGERS (2 Samuel 12:1-14)
Hebrews 4:13 "And there is no creature hidden from His sight, but all things are naked and open to the eyes of Him to whom we must give
account."