While the Bible systematically reveals the Messiah as being the Divine Son of God, the Qur'an flatly denies this, but relegates Christ to being a most perfect messenger of God. While the Bible predicts and clearly records and abundantly references the death and resurrection of Christ, <ref>Isa. 53:10-12; Dan. 9:24; Dan. 9:26; Mat. 12:40; 16:21; 20:28; 27:2-10,40,63; Mar. 15:1,16-20; 17:23; Luk. 22:26-27; 23:1-5; 24:7,26-27; Jn. 2:19; 3:14; 8:28-38; Act. 3:13-16; 1Co. 15:3-7; 2Co. 5:21; Gal. 3:13; Phi. 2:5-8; 1Ti. 3:4-6; 2:14; Heb. 5:8; 1Pt. 1:19; 2:24; 3:18,22</ref> that He sacrificially shed His blood and died on the cross, in order to make the perfect atonement for man's forgiveness, and rose to life and later ascended to the right hand of the Father, the Qur'an dismisses this, and offer a brief explanation that a substitute took His place.(Sura 4:157) As the entire message of the New Testament centers around Jesus Christ being the unique son of God - a title which itself conveyed Deity at that time (Jn. 5:18; 19:7) - who died and rose again and now reigns as the present savior and future judge of mankind, then the Bible and the Qur'an are most irreconcilable on these points.
In addition, in the New Testament the nature of the people of God is essentially that of a spiritual entity, into which "body" all believers are baptized upon believing, (1Cor. 12:13) and are translated into the spiritual kingdom of Christ. As such, the means of warfare for the New Testament church was "not carnal", that is, by the sword of men, but spiritual: "By pureness, by knowledge, by longsuffering, by kindness, by the Holy Ghost, by love unfeigned, By the word of truth, by the power of God, by the armour of righteousness on the right hand and on the left." (2 Cor 6:6-7) In contrast, Islam works out of the model of a seventh century physical theocracy, which thus uses physical means of oppression toward those without as well as within, in order to defeat its enemies and enlarge its borders. Due to both the nature of the Qur'an, and Muhammad's example, and evidence from the ''Hadityh'', many believe that “radical” Islam is more historically authentic and representative of the modern Islamic world than the “moderate” variety.<ref> http://www.muslimhope.com/WarInIslam.htm.</ref>
Muslim's respond to such by repeating atheism's allegations of irreconcilable contradictions within the Bible,<ref>http://debate.org.uk/topics/apolog/contrads.htm</ref> which Christians respond to by providing clarifications and explanations, while also documenting various other contradictions between the Bible and the Quran, as well as within the later, and between the latter and other authorities.<ref>http://answering-islam.org/God/character.html</ref><ref>[http://answering-islam.org/Quran/Contra Contradictions in the Qur'an]</ref>