I have been trying to find out what his religious background is and have come up with nothing, aside from Hugh Hewitt saying he is a "man of faith".
Also, the name: "Kethledge" seems to be extremely rare. I could only find about a dozen "Kethledge's" in the US in the various people search engines. I think it originates from England, but am not sure.
I like this man a lot too.
Type in Kethledge and Vince Foster. You might want to read up.
Just tried “Geni Surnames” and they did not have a single Kethledge among their profiles.