For example, Biblically GOD is said to have created the universe using sound, he spoke things into existance
He hath formed, weighed, and composed with these twenty-two letters every created thing, and the form of everything which shall hereafter be.
3. These twenty-two sounds or letters are formed by the voice, impressed on the air, and audibly modified in five places; in the throat, in the mouth, by the tongue, through the teeth, and by the lips. (31)
4. These twenty-two letters, which are the foundation of all things, He arranged as upon a sphere with two hundred and thirty-one gates, and the sphere may be rotated forward or backward, whether for good or for evil; from the good comes true pleasure, from evil nought but torment.
5. For He shewed the combination of these letters, each with the other; Aleph with all, and all with Aleph; Beth with all, and all with Beth. Thus in combining all together in pairs are produced the two hundred and thirty-one gates of knowledge.
Basically, the idea that the combination of letters placed in different orders and spoken in the original language create, each letter having some kind of devine power within itself. One presumes, though I havent done the maths that there are 231 possible combinations if you were to pair the letters of the alphabet together