The Bible is an indispensable part of the furniture of a Christian Lodge, only because it is the sacred book of the Christian religion. The Hebrew Pentateuch in a Hebrew Lodge, and the Koran in a Mohammedan one, belong on the Altar; and one of these, and the Square and Compass, properly understood, are the Great Lights by which a Mason must walk and work.
The obligation of the candidate is always to be taken on the sacred book or books of his religion, that he may deem it more solemn and binding; and therefore it was that you were asked of what religion you were. We have no other concern with your religious creed.

Ch. I : Apprentice, The Twelve-Inch Rule and Common Gavel, p. 1 - Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry (1871)