Still writing against Celsus, he declares that the secret teachings of Jesus were preserved in the Church, and refers specifically to the explanations that He gave to His disciples of His parables, in answering Celsus' comparison of "the inner Mysteries of the Church of God" with the Egyptian worship of animals. "I have not yet spoken of the observance of all that is written in the Gospels, each one of which contains much doctrine difficult to be understood, not merely by the multitude, but even by certain of the more intelligent, including a very profound explanation of the parables which Jesus delivered to 'those without,' while reserving the exhibition of their full meaning for those who had passed beyond the stage of exoteric teaching, and who came to Him privately in the house. And when he comes to understand it, he will admire the reason why some are said to be 'without,' and others 'in the house.'"[126] And he refers guardedly to the "mountain" which Jesus ascended, from which he came down again to help "those who were unable to follow Him whither His disciples went." The allusion is to "the Mountain of Initiation," a well-known mystical phrase, as Moses also made the Tabernacle after the pattern "showed thee in the mount."[127] Origen refers to it again later, saying that Jesus showed himself to be very different in his real appearance when on the "Mountain," from what those saw who could not "follow Him on high."[128] So also, in his commentary on the Gospel of Matthew, Chap, xv., dealing with the episode of the Syro-Phœnician woman, Origen remarks: "And perhaps, also, of the words of Jesus there are some loaves which it is possible to give to the more rational, as to children, only; and others as it were crumbs from the great house and table of the well-born, which may be used by some souls like dogs."