So Jesus had a desire for food after the resurrection and ate, satisfying his desire.
When he had said this, he showed them his hands and feet. And while they still did not believe it because of joy and amazement, he asked them, Do you have anything here to eat? They gave him a piece of broiled fish, and he took it and ate it in their presence.
He said to them, This is what I told you while I was still with you: Everything must be fulfilled that is written about me in the Law of Moses, the Prophets and the Psalms.
Then he opened their minds so they could understand the Scriptures. -- Luke 24
Clearly, what Jesus desired was for the disciples to see that he was a material being, not a spirit or a vision.
Why won't people still have a sexual desire that will also be satisfied after our resurrection? What is so special -- some say sinful -- about sex?
There is nothing special about sexual desire--it's the same as any need of the flesh. Even resurrected, Jesus did not need food, because His body was uncorruptable--immortal. But He could eat food.
Some people are depending on Paul's characterization of Christ as the "second Adam" as being necessarily indicative of physical co-identity rather than only what Paul specifically said that it was: A second man without sin, which was btw true before Jesus was resurrected. Jesus was the Second Adam--the man without sin--before He was crucified.
"Every matter must be established by the testimony of two or three witnesses." -- 1 Corinthians 13
The fact that Jesus was without sin is shown in multiple NT witnesses. The idea that Jesus was resurrected physically identical to Adam is present nowhere, certainly not given multiple witnesses.
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