Shaykh-ul-Islâm Ahmad bin Taymiyyah
al-Jawâb as-Saheeh (2/155)
Many wise men say that all human ideologies are possible to imagine, apart from the Christian ideology. This is because the founders of Christianity founded it without imagining what they really are saying. They spoke out of ignorance and, in addition to that, they were contradictory. Therefore, some say:
“If ten Christians meet, they are divided into eleven theories.”
Others say:
“If you ask a Christian about his monotheism, his wife’s monotheism and his child’s monotheism – the man answers one thing, the wife another thing and the child a third thing.”