Both Christianity and Islam claim to be revealed religions.
Jesus Christ (pbut) declared that the message he was delivering was not his but
"I have not spoken of myself: but the Father which
sent me, He gave me a commandment, what I should say, and what I should
He described himself as
"A man that hath told you the truth, which I have
heard of God"
In the same way it is claimed in the Qur'an that the
Revelation which came to Prophet Muhammad (pbuh) was from the Lord of the
(And lo it (i.e., the Qur'an) is a Revelation of the Lord
of the worlds, which the True Spirit hath brought down upon thy heart (O
Muhammad), that thou mayest be one of the warners)
(Qur'an 26: 192-194)
From this it follows that the truth of either religions
depends on the accuracy with which the inspired words of its Founder have been
recorded and on the textual purity of its Scripture. If
the message which was revealed by God to a prophet has not
reached us exactly as it was delivered, but has been misreported and altered,
then to that extent that religion may be regarded as having deviated from
truth. In this chapter we shall see how far the inspired words and Revelations
of Jesus and Muhammad (pbut) have been faithfully recorded in the Gospels and
the Qur'an respectively, and how far these Scriptures have remained free from
alteration or interpolation of any kind.