Did He tell his disciples that they are from above because He said that He was from above. And he said the same thing here:
"And no man hath ascended up to heaven, but he that came down from heaven, even the son of man which is in heaven" (Jn.3:13).
And here:
"What and if ye shall see the son of man ascend up where he was before?" (Jn.6:62).
Of course the Lord Jesus came down from heaven and it is obvious that He is the One here in "bold":
"For thus saith the high and lofty One that inhabiteth eternity, whose name is Holy; I dwell in the high and holy place, with him also that is of a contrite and humble spirit, to revive the spirit of the humble, and to revive the heart of the contrite ones" (Isa.57:15).
I said
I'm glad Jesus went up I'm planning the same trip myself one day. But it won't make me anymore God than it made Jesus.