Jesus, raised from the dead, has been raised incorruptible, just as we will be raised incorruptible on the Last Day.
this is kind of the whole point of the Christian religion: "We believe in Jesus Christ, God's only-begotten Son, our Lord, who was conceived by the Holy Spirit, born of the Virgin Mary, suffered under Pontius Pilate, was crucified, died, and was buried, He descended into the depths. On the third day He rose again; He ascended into heaven, He is seated at the right hand of the Father, from whence He shall come to judge the living and the dead. ... We believe ... in the forgiveness of sins, the resurrection of the body, and the life everlasting. Amen." (the Apostles' Creed)