Albert Mackey,
The Symbolism of Freemasonry — Chapter XVIII
(1882)
“ And into the Master Mason's lodge--this holy of holies of the masonic temple, where the solemn truths of death and immortality are inculcated--the aspirant, on entering, should purify his heart from every contamination, and remember, with a due sense of their symbolic application, those words that once broke upon the astonished ears of the old patriarch, "Put off thy shoes from off thy feet, for the place whereon thou standest is holy ground." ”
