I had the same thoughts. Then if you look at other characters names it gets even more curious. Sarah- jacks ex on the show is also the name of Jacob's wife, Jacob was born of Isaac (as you said) and Rebecca (no one by that name yet- the actress who plays Charolette is Rebecca Madder), Ben (biblically) is the son of Jacob, and Aaron is the grandson of Jacob. So what does it all mean? Are they just mindlessly pulling names which happen to coincide with eachother or is there something deeper? If some one is named Essau (Jacobs bro biblically) then were in trouble