Isis searches tirelessly for her dead husband Osiris and gives birth to his son Horus. Osiris is an early form of the Resurrected god, of which Christ is a late example. Isis and Horus are the prototype for the Madonna and Child of Christianity.

http://www.ctio.noao.edu/instruments/ir_instruments/osiris/tale.html

The Tale of Isis & Osiris

http://www.belinus.co.uk/mythology/Osiris.htm 

OSIRIS