I am looking for an unusual name for my baby boy and I really love Old Testament/Biblical boys' names. I've narrowed it down to two: Ira and Tobias. Personally, I absolutely love (and prefer) Ira, but I appreciate that it's very unusual and am wondering whether Tobias might be a safer choice, especially since it has a more mainstream nickname (Toby, or even Bias).
Which should I choose?