According to mainstream Christian groups, is it the soul or the body that goes to heaven?

During his Sermon on the Mount, Jesus said > "It is better for you to lose one member of your body that causes you to sin than have your whole body thrown into hell" (Matt 5:30b) From the above it can be concluded that it is the body that receives life (enters heaven) or is condemned to hell. Then the preacher Ecclesiastes said that > "who knows whether the soul of an animal goes down into the earth when it dies or the soul of a man goes upwards into the heavens when he dies" (Eccl 3:21) Then there is the narrative of the thief on the right at the crucifixion who was told by Jesus that > "Believe me I tell you, you shall be with me in paradise today" (Luke 23:43) Because the body of the thief was left on the cross, it is evident that it is the soul of the thief that met Jesus in paradise in addition to what was written by Ecclesiastes. **Is it the body or the soul that enters into heaven or hell?**