I agree completely with Bill’s comments about (non) bias against evangelicals in the university. My own experience is very similar. Like Bill, I’ve always been up front about my faith, and it has never hurt me in any discernible way at the law schools I’ve been associated with (Penn and Temple on a full-time basis, three others as a visiting professor). To the contrary, I’ve often gotten the impression that my being an evangelical is viewed positively, as a source of diversity.
I have only one caveat to add. Christian scholars (not just an evangelicals but Catholics and main line Protestants as well) seem to have more difficulty persuading top law reviews to publish work that they write from an identifiably Christian perspective, than work that looks more like traditional scholarship. I suspect that there may be a similar dynamic on many tenure committees: scholarship from a Christian perspective doesn’t carry quite as much weight as scholarship that looks more like the other, secular scholarship in the scholar’s field. This doesn’t necessarily reflect any bias: it may be the scholarship is simply unfamiliar or seems hard to evaluate. But when young evangelical scholars ask me for advice about faith and scholarship, I encourage them to write both kinds of scholarship: some scholarship from an explicitly Christian perspective, but also more traditional scholarship that directly engages the best secular scholarship in their field on its own terms.