As the Christian G-d and the muscleman’s allah are polar opposites, so, by their words and deeds, were Christ and Mohammad.
(Ishaq and Bukhari are two of the other essential works in Islam - the others are Tabari and Muslim). One cannot understand the Quran without reading these other Islamic books.
Here, I use a Quranic quote and illustrate its clear meaning using Hadiths and Sunnahs from the other books.
Qur’an 61: 4: “Surely Allah loves those who fight in His Cause.”
Ishaq: 300: “I am fighting in Allah's service. This is piety and a good deed. In Allah's war I do not fear as others should. For this fighting is righteous, true, and good.”
Bukhari: V4B52N63: “A man whose face was covered with an iron mask came to the Prophet and said, ‘Allah's Apostle! Shall I fight or embrace Islam first?’ The Prophet said, ‘Embrace Islam first and then fight.’ So he embraced Islam and was martyred. Allah's Apostle said, ‘A Little work, but a great reward.’”
Bukhari: V4B53N386: “Our Prophet, the Messenger of our Lord, ordered us to fight you till you worship Allah alone or pay us the Jizyah tribute tax in submission. Our Prophet has informed us that our Lord says: ‘Whoever amongst us is killed as a martyr shall go to Paradise to lead such a luxurious life as he has never seen, and whoever survives shall become your master.’”
Kill em.