Thomas Aquinas,
Summa Theologiae — Question 51 - OF CHRIST'S BURIAL…
“ Art. 3 - Whether Christ's body was reduced to dust in the tomb? Objection 1: It would seem that Christ's body was reduced to dust in the tomb. For just as man dies in punishment of his first parent's sin, so also does he return to dust, since it was said to the first man after his sin: "Dust thou art, and into dust thou shalt return" (Gn. 3:19) . But Christ endured death in order to deliver us from death. Therefore His body ought to be made to return to dust, so as to free us from the same penalty. ”
