What is the Watchtower's key "proof"?
The Watchtower's key biblical passage that they use to "prove" their teaching that those who enter heaven must give up their physical bodies, is 1 Corinthians 15:50, "Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; nor does corruption inherit incorruption." The Watchtower teaches that this means that physical man cannot enter heaven. But let's have a closer look at this passage. Do you see that in this passage that corruption is equated to flesh and blood and incorruption is equated to the kingdom of God? Wouldn't that mean that these corruptible mortal bodies of ours that are subject to death and decay cannot possess the kingdom of God in this mortal state?
How will these mortals be changed?
The next few verses clarify what must happen to these mortal bodies to qualify them for heaven. 1 Corinthians 15:51 says that the dead will be raised incorruptible and that we shall be changed. How are these mortal bodies to be changed? Is it by giving up or taking off the physical body as the Watchtower teaches? Verses 53 declares that this corruptible or mortal body must put on incorruption and immortality. Do you see that it says the mortal must put on immortality? Putting on immortality is putting on eternal life so that the mortal body is changed to a body that will never die. Do you see that putting on is the opposite of taking off? Instead of teaching that one must give up their humanity to enter heaven, this passage teaches just the opposite. This passage agrees with Romans 8:11 "But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ from the dead will also give life to your mortal bodies through His Spirit who dwells in you."
Did the New World Translation need to correct God's word?
The Watchtower does not know how to answer Romans 8:11 nor Romans 8:23 that states that we who have the firstfruits of the Spirit eagerly await the adoption, the redemption of our body. The only way that the Watchtower could handle Romans 8:23 was to change the original inspired words of Almighty God to says release from our body. (See the Kingdom Interlinear Translation where the Watchtower's tampering with God's word is clearly evident.) Paul clearly stated in 2 Corinthians 5:4 that Christians were not wanting to be released from their bodies but wanted to have their bodies further clothed with immortality or life. Anyone that is willing to look at the evidence with an open mind will have to ask these questions: Why did the Watchtower have to change the wording of the Bible if their doctrine was in harmony with the Bible?
Does the 144,000 sacrifice their bodies for the great crowd?
Many Jehovah's Witnesses are unaware that the Watchtower originally started teaching the doctrine that the anointed must give up their physical bodies as a direct result of their belief in the Christ class. The Christ class, a teaching that the 144,000 plus Jesus made up a composite mediator class, was taught up until the 1940's. The Society taught that this Christ class shared in the sin offering for mankind and the sacrifice that the 144,000 made for mankind was identical to what they said Jesus sacrificed - and that was the sacrifice of his humanity. Although the teaching that the 144,000 was involved in the sin offering for mankind was discarded in the 1940's, many teachings of this Christ class have remained even after the Watchtower renamed the Christ class to the Anointed class.