Must it be one or the other? Both are celebrated in my country.

( It's a Catholic tradition. Javert's mother may not have been, but his father was, and so his mother had named him as the wife of any good Frenchman would — after that of a saint. It feels wrong to possess such a name, and that is why Javert doesn't use it often, if ever. )

You have a biblical name. Would you ever wish to be called by it again?