Apostles who gave good news as well as warning, that mankind, after (the coming) of the apostles, should have no plea against God: For God is Exalted in Power, Wise. S. 4:165 Y. Ali

The Quran makes it categorically clear that Muhammad was a warner. What does a prophet warn the people about? A prophet warns the people about the consequences of sins. Every sin has punishment for it.

But a man who would warn the people on the consequence of sins must himself not be found a sinner. A sinner is not in the position to warn other sinners. You cannot give what you don't have.

Muhammad is said to be a giver of good news. This is a concept contradictory to jihad, whereby he would enter a city and kill them if they didn't surrender to islam as stated below. Killing people is not a good news by any interpretation.

Quran  48:2] That Allah may forgive thee of thy sin that which is past and that which is to come, and may perfect His favour unto thee, and may guide thee on a right path,

The Quran says Muhammad had sins in the past, present and even in the future. It was like he had a liberty to commit sins and would be automatically forgiven.What then would he warn the people about? A sin is a sin: idolatry, adultery, fornication, killings, lies, stealing etc. If a prophet indulges in any of those, he is not qualified to be a warner.

Quran 50:45] We are Best Aware of what they say, and thou (O Muhammad) art in no wise a compeller over them. But warn by the Qur'an him who feareth My threat.

If Muhammad was a warner and not a compeller, why did he embark on Holy War?


Quran 6:48
We send the apostles only to give good news and to warn: so those who believe and mend (their lives), - upon them shall be no fear, nor shall they grieve. S. 6:48 Y. Ali; cf. 18:56

If Muhammad was sent ONLY to give good news and to warn, why were there verses in the Quran ordering him to fight infidels?


Again, a warner from God gives warning and leaves it at that. He doesn't punish the violators. Why would Muhammad kill those who did not heed his warnings? How would he convince the people not to do what he himself was found doing?

References:


Quran 2:216
Warfare is ordained for you, though it is hateful unto you; but it may happen that ye hate a thing which is good for you, and it may happen that ye love a thing which is bad for you. Allah knoweth, ye know not.

Does a good news carrier fight war? What has warring got to do with warning?


Sahih Muslim 4346
The Messenger of Allah (may peace be upon him) said: If you come to a township (which has surrendered without a formal war) and stay therein, you have a share (that will be in the form of an award) in (the properties obtained from) it. If a township disobeys Allah and His Messenger (and actually fights against the Muslims) one-fifth of the booty seized therefrom is for Allah and His Apostle and the rest is for you. 

....If you come to a township (which has surrendered without a formal war)...That connotes Muhammad was entering cities and forcing them to surrender or face a war. Even after surrendering, they forced them to have a share in their properties. How can any reasonable person claim he was fighting in self-defence or claim Islam is a religion of peace? 

Then the apostle sent Khalid bin Walid… to the Banu al-Harith and ordered him to invite them to Islam three days before he attacked them. If they accepted then he was to accept it from them, and if they declined he was to fight them. So Khalid set out and came to them, and sent out riders in all directions inviting the people to Islam, saying, “If you accept Islam you will be safe.” So the men accepted Islam as they were invited. (Ibn Ishaq/Hisham 959)

Three days notice before attack. How is this in consonance with good news or mere warning as the Quran says. Why is the Quran inconsistent?