ALLAH - for Muslims the greatest and most inclusive of the Names of God, an Arabic word of rich and varied meaning, denoting the One Who is adored in worship, Who creates all that exists, Who had priority over all creation, Who is lofty and hidden, Who confounds all human understanding. It is exactly the same word that the Jews, in Hebrew, use for God (Eloh), the word which Jesus Christ used in Aramaic when he prayed to God.
But what about The Bible?
At the bottom of this text is an image of the Ten Commandments from the Bible. Well, it is Bible in Arabic. I purchased it via the internet from the Barnes and Nobles site. You can do the same. However, it may not do you any good if you don't know the Arabic. The Arabic Bible, as is evident from the image page at the bottom, uses the word Allah to refer to God. Thus Arab Christians use the name Allah to refer to the God. It may surprise many in the West, but it is the plain truth.
"He is God, the One God Independent and sought by all; He begets not, nor is begotten, and there is none like unto Him" (The Holy Qur 'an - Chapter 112 - Al-Ikhlas- Sincerity of Faith)
All the most beautiful names belong to Allah. The Most-Merciful, the Most-Kind, the Al-Mighty, …
NOTE: The photographed image below is taken from, "Al-Kitab Al-Muqqadis," i.e. The Holy Bible in Arabic.