This is a job description for the position of PA/Marketing/Administrator. It has only just been posted. I don't think whoever made up the ad has ever heard of the Equalities Act 2010 which states quite clearly that here in the UK you cannot discriminate on grounds of religion.
A direct quote from the 4th paragraph:
"We are a Christian business, and meet on Mondays to pray for the company and for each other. The successful candidate would be involved in this aspect too. It would be interesting to hear your passions and motivations in your application. We are in business to succeed and make money, however, there is also a social enterprise side to our work. "
I've read on RD.net about this sort of thing in the US, I never expected to see it here in the UK.