Martin Tanner briefly describes the 39 miracles of Jesus in the New Testament.  A dozen or so others are found in extra-Biblical books of the first three centuries.  Martin Tanner asks, "What is a miracle?" and "Can something that can be explained still be a miracle?"  He suggests the miracles of Jesus helped those around him, and us today, identify him as the Messiah promised by Isaiah and other prophets.  Miracles still happen today, despite our having more available information to explain them.