[Luke 9:33] And it came to pass, as they departed from him, Peter said unto Jesus, Master, it is good for us to be here: and let us make three tabernacles; one for thee, and one for Moses, and one for Elias: not knowing what he said.
 
Peter prophesied ("not knowing what he said" = prophetic words spoken by the Holy Spirit = "this spake he not of himself", see John 11:49-51) that there would be a tabernacle ("tabernacle" = body of flesh, see 2 Peter 1:13-14 and 2 Corinthians 5:1-4) for Moses and Elijah.
 
in Jesus' Name,
Lester
 
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[John 11:49-51] And one of them, named Caiaphas, being the high priest that same year, said unto them, Ye know nothing at all, Nor consider that it is expedient for us, that one man should die for the people, and that the whole nation perish not. And this spake he not of himself: but being high priest that year, he prophesied that Jesus should die for that nation;
 
[2 Peter 1:13-14] Yea, I think it meet, as long as I am in this tabernacle, to stir you up by putting you in remembrance; Knowing that shortly I must put off this my tabernacle, even as our Lord Jesus Christ hath shewed me.
 
[2 Corinthians 5:1-4] For we know that if our earthly house of this tabernacle were dissolved, we have a building of God, an house not made with hands, eternal in the heavens. For in this we groan, earnestly desiring to be clothed upon with our house which is from heaven: If so be that being clothed we shall not be found naked. For we that are in this tabernacle do groan, being burdened: not for that we would be unclothed, but clothed upon, that mortality might be swallowed up of life.