The Bishop of Shrewsbury will use his Christmas message to take a swipe at the coalition Government, addressing its intentions to redefine the institution of marriage.
During midnight Mass at Shrewsbury Cathedral the Rt Rev Mark Davies will say: "This Christmas we are also conscious of new shadows cast by a Government pledged at its election to support the institution of marriage.
"This vital foundation of society, the 2011 census indicates, now stands at perhaps is lowest ebb.
"At such a moment the Prime Minister has decided without mandate, without any serious consultation to redefine the identity of marriage itself, the foundation of the family for all generations to come.
"This is again done in the name of progress... The British people have reason to ask on this night, 'where is such progress leading?"'