Muslim polemicists accused Christians of corrupting scripture and polytheism

Evidence

But he also wrote the lengthy and rancorous Kitab al-Fisal fi-al-Milal wa-al-Ahwa’ wa-al-Nihal, or ‘Book of Distinction in the Religions, Heresies, Sects’, in which he sought to demonstrate the superiority of Sunni Islam to all other faiths and sects. … According to Ibn Hazm, Christians had tampered with the New Testament and removed prophecies concerning the coming of Muhammad. They corrupted the Gospels with lies. ‘All this shows the Christian community is altogether vile.’ — Robert Irwin, For Lust of Knowing, 80

Categorization

• XREF: connects to: Muslims held that Jews and Christians corrupted their scriptures; Muslims rejected the Trinity as polytheism and carnal generation; Polemics could condemn a rival religion using only its own scriptures

Related

• Muslims held that Jews and Christians corrupted their scriptures (similarity 0.92)
• Polemics could condemn a rival religion using only its own scriptures (similarity 0.84)
• Islamic doctrine of tahrif holds Jews and Christians corrupt scripture (similarity 0.83)
• Muslims rejected the Trinity as polytheism and carnal generation (similarity 0.81)
• Medieval Christian polemic framed Islam alongside heresy and Judaism (similarity 0.81)
• Medieval Muslims attacked Christian Trinity and Incarnation as blasphemous polytheism (similarity 0.80)
• Each religion saw the other as a corruption of its own truth. (similarity 0.80)
• Medieval polemic attacked Muslim aspects that scandalized Christian observers (similarity 0.80)
• Medieval Christian polemicists attacked Islam with knowingly false evidence (similarity 0.80)
• Premodern Christian polemics staged Muslims as easily-convinced strawmen (similarity 0.80)
• Medieval Christian polemicists uniquely claimed proof via another religion’s scriptures (similarity 0.80)
• Polemicists kept absurd anti-Islam tales because they were proprietary (similarity 0.79)
• Ninth-century Muslim polemic claimed Christians falsified scripture and worshiped images (similarity 0.79)
• Christian polemicists charged the Qur’an with asserting and denying the same doctrines. (similarity 0.79)
• Christian polemics against Islam argued from premises only Christians accepted (similarity 0.79)