As a preachers kid, I may be able to help a bit...the pic on the front looks to be a depiction of the nativity. With Mary on the left, Joseph on the right, Baby Jesus in the middle and cattle behind him...The second side appears to be of John the baptist baptizing Christ, with Jesus on the left, John on the right and the dove above them. I cant make out the writing, but the genesis part sort of makes sense. If you can figure out the lettering on the back, let me know. My guess is that its some sort of Greek orthodox (or at least catholic) pendant used to commemorate a persons baptism...but thats just an educated guess.