Some Of Us say i will commit that sin after which i will repent but do know that one way or the other you'll definately pay for the sin(s) you committed as a believer or not, so no sin can go free. Lets see an example. David in the bible when he took the wife of his soldier and kill him God forgave him but did not forget his sin,  His son slept with his half sister and remeber that his other son killed him so you see one way or the other every sin commited will be paid for.

Please I stand to be corrected.

The christians according to the Bible always undervalue or exagurate the conditions of prophets. In the case of Jesus, they call him son or God! In others, as it has been demostrated above, they under value them to nothingness, forgetting their occupancy of the office of Prophethood. Prophet David from the Qur'an, was not only a prophet but also a king. He was such a good prophet that when Adam first saw the soul of this son of his, he pledged 40 years out of his life. Further, David (AS), was a king who made his own livelihood by being a blacksmith. He had such a beautiful voice that even the birds can sing better than him.

With all of this, the christians when it is convenient for their purpose, they even call Jesus son of David, yet it is the same david that they accused of adultery!

How can a prophet of God commit such a lood act? It is impossible for a prophet of All encompassing and All knowing God to be faullable like that. God keep all His prophets and protects them from any and all major sins. Adultery is one of them. God never humiliated any of His prophet or messenger (AS).

Prophet King David had so many wives. The office of prophethood is a humbling experience. There is no need for prophet David (AS), to order the killing of a man so that he can steal his wife! It is this prophet that also the direct father of another Orophet King Solomon (AS), who was given the control of Jinns and all kind of animals and even was able to control the wind!

King Solomon was the one that God used to converted Queen Bilkis of Saba to a believing woman and consequently, her Kingdom! How can one say these evil things about these noble souls?

Nice.