Whenever there is a terrorist attack perpetrated by Muslims in the name of Allah I always hear that Christianity shares the blame because both faiths worship the same god.
This assertion is absolutely false.
In the Bible, God reveals Himself to us in many names. These names are His personal property. We did not invent these names for God. To the contrary, God revealed these names as His own.
We have no right to modify or to revise these names—much less to reject them. Jesus Christ made this abundantly clear. In the simplest way imaginable, Jesus teaches us to know God as Father, and to use this name in prayer. The Lord’s Prayer begins with the words, “Our Father, who is in heaven.” By the grace that God has shown us in Christ, we can truly know Him as Father.
Muslims do not speak of God as their heavenly Father. In the Islamic faith, Allah is not only a different name for god; the deity it designates is far more impersonal than the God of the Bible. Father—the very name that Jesus gave us as the designated name for use in prayer—is a name that simply does not fit Allah as depicted in the Quran.
Furthermore, Muslims claim that Allah has no son. This represents a head-on collision between the God of the Bible and Allah. For, as the Bible makes clear, the one and only true God is most perfectly revealed as the Father of the Son, Jesus Christ. In the Gospel of John, Jesus repeatedly teaches that no one has truly known the Father, except by the Son. In one of the most clarifying verses in the New Testament, Jesus declared Himself to be “the way, and the truth, and the life,” adding, “No one comes to the Father except through me” (John 14:6).
Because Muslims deny that God has a son, they explicitly reject any Trinitarian language. From the very starting point, Islam denies what Christianity takes as its central truth claim: the fact that Jesus Christ is the only begotten of the Father. If Allah has no son, then Allah is not the God who reveals Himself through the Son. How then can calling God “Allah” not lead to anything but confusion—and worse?