How can these inconsistencies about Jesus' tomb be explained? As it was mentioned in this topic, reading the New Testament side by side, one can pick up apparent inconsistencies in the Gospels by various Disciples. As it was suggested that they should be explained on a case by case basis, lets start with the opening of Jesus' tomb. Looking at four different passages:


  Mathew 28:2
  There was a violent earthquake, for an angel of the
  Lord came down from heaven and, going to the tomb, rolled back the
  stone and sat on it.
  
  Mark 16:4-5 But when they looked up, they saw that the stone, which was very large, had been rolled away. As they entered the tomb, they saw a young man dressed
  in a white robe sitting on the right side, and they were alarmed.
  
  Luke 24:2-4 They found the stone rolled away from the tomb, but
  when they entered, they did not find the body of the Lord Jesus.
  While they were wondering about this, suddenly two men in clothes that
  gleamed like lightning stood beside them.
  
  John 20:11-12 Now Mary stood outside the tomb crying. As she wept,
  she bent over to look into the tomb and saw two angels in white,
  seated where Jesus’ body had been, one at the head and the other at
  the foot.


How is this inconsistency explained by theologians of the various major denominations of Christianity, especially the ones that believe in Biblical inerrancy?
So, in the first three cases (the Synoptic Gospels), you have:


an angel (or someone dressed in a gleaming white robe)
a stone rolled away


(And that's just one sentence)

In John, you have two angels, yes, but this purports to be the account of a different person. (the Synoptics have the disciples as the antecedent, John explicitly mentions Mary)

I suppose you could say that Matthew differs from Mark and Luke, in that one purports to narrate that the angel rolled it away, but before the disciples got there.

I'm not seeing the inconsistency -

There was one angel when the disciples came.
There were two when Mary came.

In all instances, you have angels, a rolled away stone, and an empty tomb.