"the transformation (perfection) of the body from its material/solid flesh form into its original subtler light body form."
"In Christianity, ascension is a literal, bodily return to heaven and emergence into the presence of God. As Jesus will return the same way he left (Acts 1:11), it implies that the ascended body is different from our physical form. It is a return to our original, light body form"
https://www.williamhenry.net/2017/12/ascension-light-body-essential-questions/
"Christ makes it plain to His disciples that He does have a physical body; He is not a disembodied spirit: “See my hands and my feet, that it is I myself. Touch me, and see. For a spirit does not have flesh and bones as you see that I have” (Luke 24:39). After spending forty days with His disciples, Jesus ascended bodily into heaven (Acts 1:9). Jesus is still human, and He has a human body in heaven right now. His body is different, however; earthly human flesh is perishable, but heavenly bodies are imperishable (1 Corinthians 15:50). Jesus has a physical body, with a difference. His resurrected body is designed with eternity in view."
https://www.gotquestions.org/Jesus-physical-body.html
"New Bodies
5 For we know that when this earthly tent we live in is taken down (that is, when we die and leave this earthly body), we will have a house in heaven, an eternal body made for us by God himself and not by human hands. 2 We grow weary in our present bodies, and we long to put on our heavenly bodies like new clothing. 3 For we will put on heavenly bodies; we will not be spirits without bodies.[a] 4 While we live in these earthly bodies, we groan and sigh, but it’s not that we want to die and get rid of these bodies that clothe us. Rather, we want to put on our new bodies so that these dying bodies will be swallowed up by life. 5 God himself has prepared us for this, and as a guarantee he has given us his Holy Spirit."
https://www.biblegateway.com/passage/?search=2%20corinthians%205&version=NLT
"58We heard him say, I will destroy this temple that is made with hands, and within three days I will build another made without hands"
https://biblehub.com/kjv/mark/14.htm
"21 But the temple he had spoken of was his body. 22 After he was raised from the dead, his disciples recalled what he had said. Then they believed the scripture and the words that Jesus had spoken."
https://www.biblegateway.com/passage/?search=John%202:13-22&version=NIV
"But Jesus beheld them, and said unto them, With men this is impossible; but with God all things are possible."
https://www.biblegateway.com/passage/?search=Matthew%2019:26&version=KJV
"The NIV suggests that these saints were resurrected when Jesus died and then went into Jerusalem after Jesus’ resurrection. A number of commentators agree with this view. Many others, however, say that since Christ is the firstfruits of the dead (1 Cor. 15:23), their resurrection did not occur till He was raised. In this view, the phrase “after Jesus’ resurrection” goes with the words were raised to life and came out of the tombs. This is possible in the Greek, and is suggested in the KJV and the NASB. The tombs, then, broke open at Christ’s death, probably by the earthquake, thus heralding Christ’s triumph in death over sin, but the bodies were not raised till Christ was raised."
https://bible.org/question/who-were-saints-were-raised-dead-christ%E2%80%99s-death
"Will Armageddon be the end of the world? It will not be the end of our planet, since the earth is mankind’s eternal home. (Psalm 37:29; 96:10; Ecclesiastes 1:4) Rather than destroying humanity, Armageddon actually saves it, because “a great crowd” of God’s servants will survive.—Revelation 7:9, 14; Psalm 37:34.
Besides referring to the earth, though, the word “world” in the Bible sometimes refers to wicked human society opposed to God. (1 John 2:15-17) In this sense, Armageddon will bring “the end of the world.”—Matthew 24:3, King James Version.
When will Armageddon take place? When discussing the “great tribulation” that culminates in the battle of Armageddon, Jesus said: “Concerning that day and hour nobody knows, neither the angels of the heavens nor the Son, but only the Father.” (Matthew 24:21, 36) Nevertheless, the Bible does show that Armageddon takes place during Jesus’ invisible presence, which began in 1914.—Matthew 24:37-39."
https://www.jw.org/en/bible-teachings/questions/battle-of-armageddon/