“According to this Jewish tradition there had been in existence an ideal tabernacle or, as it is usually called, sanctuary, prior to the building of the visible tabernacle in the wilderness; and it was that ideal tabernacle which God showed to Moses as a pattern for the visible tabernacle. This tradition is expressed in two ways, Sometimes it is said that the ideal sanctuary was created by God prior to the creation of the world (Babylonian Talmud Pesachim 54a , Nedarim 39b
Tanhuma Numbers, Naso 19 ) … This ideal sanctuary is referred to as the “celestial sanctuary” (Genesis Rabbah 55:7 bet Ha-mikdash le-ma’alah..). Besides the sanctuary, there were also ideal models of all its vessels, and these, too, were shown to Moses when he was in heaven. This belief in the preëxistence of the tabernacle and its vessels is part of a more general belief in the preëxistence of certain objects or actions which were subsequently to play a part in scriptural history. … The preëxistence of some of these occurs also in the apocalyptic literature. Two of these preëxistent ten are also mentioned by Hellenistic Jewish writers. First, the preëxistence of the Law is affirmed by them in their identification of it with wisdom which in Scripture is said to have existed prior to the creation of the world. Second, the preëxistence of the tabernacle is stated in the following verse: “Thou gavest command to build a sanctuary in the holy mountain and an altar in the city of thy habitation, a copy of the holy tabernacle which Thou preparedst beforehand from the beginning.” Wisdom of Solomon 9:8
(Philo: Foundations of Religious Philosophy in Judaism, Christianity and Islam, Harry Austryn Wolfson, Harvard University Press (1947) p182-184)
Although Wolfson concludes that this concept of preëxistence was “an old Semitic belief”, he agrees that “For the Hellenistic Jews it was quite natural to blend such beliefs in the preëxistence of things with the Platonic theory of Ideas.”
In the beginning was the Word, and the Word was with God, and the Word was God.
John 1:1 Kings James Version