David Cameron has confirmed reports that he is to back same sex marriage in religious institutions:
I'm a massive supporter of marriage and I don't want gay people to be excluded from a great institution.
"But let me be absolutely 100% clear, if there is any church or any synagogue or any mosque that doesn't want to have a gay marriage it will not, absolutely must not, be forced to hold it.
That is absolutely clear in the legislation.
Also let me make clear, this is a free vote for Members of Parliament but personally I will be supporting it.