Speaking of firstborn... ;)
I heard a song today that made me wonder...
About the plagues and Passover and whether this has any application to the argument a while back over firstborn:
When the "firstborn" of Egypt died and the "firstborn" of Israel were spared, did this only apply to the firstborn with siblings?
The Hebrew word was b'kowr which means Eldest son or preiminent in an order of things. First.
The Bible doesn't say one way or another what this meant if the child were an only child. Taking it 100% literally, however, it seems to indicate that the oldest of others was killed by the death angel. Can't be dogmatic on it. Just looking at the actual word though.