From - Albert Pike, the worldwide head of Freemasonry verifies this in his Manual on Freemasonry: Morals & Dogma, 1916:
“Among the sacred books of the Christians are two works which the infallible church does not pretend to understand, and never attempts to explain, - the prophecy of Ezekiel and the Apocalypse; two cabalistic clavicules, reserved, no doubt, in Heaven, for the exposition of the Magian kings; closed with Seven seals for all faithful believers; and perfectly clear to the unbeliever initiated in the occult sciences.” Morals & Dogma, page 731
“The Apocalypse, indeed, is a book as obscure as the Sohar. It is written hieroglyphically with numbers and images; and the Apostle often appeals to the intelligence of the Initiated. “Let him who hath knowledge, understand! let him who understands, calculate!” he often says, after an allegory or the mention of a number. Saint John, the favorite Apostle, and the Depositary of all the Secrets of the Saviour, therefore did not write to be understood by the multitude.” Morals & Dogma, p. 321