Does the bible have a place in Congress?

Every time I read a story about a Congressman or Senator using the bible to justify a moral position before a vote, I cringe. How are we different then an Islamic theocracy? Muslims use the Koran to deny progress and rights. We use the bible to the same end. It happened again just this week. Rep. Rick Allen (R-GA), a Methodist, read a passage from the bible during a Republican caucus meeting.

Rep. Rick Allen, a Georgia freshman, launched the GOP’s regular policy meeting in the Capitol basement by reading a Bible passage condemning homosexuality and suggesting that supporters of the LGBT provision, which passed the House the night before, were defying Christian tenets, attendees said. - via TPM GOPers Leave Meeting when Member Reads Bible Verse on Homosexuality.

The article goes on to state that some House members became upset and left the meeting, which I take as an encouraging sing, but the LGPT amendment was still voted down.

How is this different from a religious leader in Saudi Arabia issuing a fatwa against the morally reprehensible practice of taking photos with cats? Nothing really, and that’s why is so sad.