And behold, there was a great earthquake; for an angel of the Lord descended from heaven, and came and rolled back the stone from the door, and sat on it.  His countenance was like lightning, and his clothing as white as snow.  And the guards shook for fear of him, and became like dead men.  But the angel answered and said to the women, “Do not be afraid, for I know that you seek Jesus who was crucified.

Matthew 28:2-5   (NKJV)