This is an interesting site, but the tabs aren't necessarily accurate, and Christian music is only a small part of the site. But the site is so huge, there still is quite a bit of Christian material (especially if you're from Brazil!)
What makes the site so novel is that after you create a free account, you can edit their tabs if you think they're inaccurate. They, of course, will check it over and decide whether they should accept the changes. I edited their tab for Chris Tomlin's Forever because a few chords were out of position. About 10 days later I received a personal acknowledgement that the song had been updated.
The link goes directly to the Christian music list. Note though that a large number of songs are in Spanish and Portuguese... and not all appear to be Christian.
www.e-chords.com