J. N. D. Anderson: Jesus Christ: the Witness of History:
All the references to the empty tomb come in the Gospels, which were written for Christians who wanted to know the facts. In the public preaching, to those who were not yet convinced, as recorded in the Acts of the Apostles, there was an insistent emphasis on the resurrection, but not a single reference to the tomb. For this I can see only one explanation. There was no point in speaking of the empty tomb, for everyone — friend and foe alike — knew that it was empty. The only points worth arguing about were why it was empty, and what its emptiness proved.
(HT: CQOD)
Words of Grace 