Volume 3: 1771 Edition of the Encyclopedia Britannica!
Melchisedechians
Melchisedechians, in church-history, a sect which arose about the beginning of the third century, and affirmed, that Melchisedek was not a man, but a heavenly power, superior to Jesus Christ: for Melchisedek, they said, was the intercessor and mediator of the angels; but Jesus Christ was so only for men, and his priesthood only a copy of that of Melchisedek.