Jesus already showed that he can materialize a body.
@EasyPrompt
One of the things that makes it so hard to integrate into Christianity after being a JW is undoing the dozens of redefinitions that were installed in our heads by the indoctrination processes of the WT.
I was a 4th generation JW, now an active church member and serve on the board of directors of a K-12 Christian Academy.
I have found a good old fashioned dictionary from the 1800's to be invaluable in deconstructing WT indoctrination.
This may come as a shock to you (it did for me) ; but there is no such thing in the bible as:
1. Being Resurrected to Spirit Life
2. Jesus materializing a body
The basic meaning of "resurrection" is to rise again. When a person dies, his body falls, lies down, & appears to be sleeping. A resurrection occurs when his body does just the opposite: stands up fully animated and awake.
RESURREC'TION, noun s as z. [Latin resurrectus, resurgo; re and surgo, to rise.]
A rising again; - Webster 1828 Dictionary
Acts 17:31 Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead.
True, Jesus' body was glorified in that is was equipped with power to rise to heaven, to appear in rooms with opening a door, and so forth. But, it was still his body that he died in that was raised. Otherwise, a resurrection did not occur. And if a resurrection did not occur, then the Apostle Paul makes clear that there are bigger doctrinal problems:
if Christ be not risen, then is our preaching vain, and your faith is also vain. Yea, and we are found false witnesses of God; because we have testified of God that he raised up Christ... if Christ be not raised, ...ye are yet in your sins. - 1 Cor. 15
Foundational, bedrock Christian doctrine from the earliest eye witness testimony is that Jesus rose from the dead (was resurrrected) in his OWN BODY.