The meeting, to be chaired jointly with the Archbishop of York, Dr David Hope, will take place behind closed doors at Lambeth Palace, in London.

All 44 diocesan bishops and 10 suffragans have been invited to debate how to give a lead to their flock over October’s Windsor Report, the document produced by the commission set up to examine the crisis.

The report called for a moratorium on the authorisation of same-sex blessing ceremonies and on the consecration of gay bishops and for statements of regret from provinces that had breached the “bonds of communion”. It also proposed a covenant to be agreed by all 38 provinces to inhibit further schismatic developments.

But as The Times revealed last month, same-sex blessings are still being performed by Anglican clergy across the UK, and the Lesbian and Gay Christian Movement expects that there will be 1,000 a year once the Government’s new civil partnerships law comes into effect next autumm.

The conservative evangelical Bishop of Rochester, Dr Michael Nazir-Ali, will address today’s meeting.

The Bishop of Willesden, the Right Rev Pete Broadbent, said: “It is important that the bishops give a lead on this matter. We are all committed to trying to stay together if we can.”

Another source, an evangelical, said: “The meeting has been called at short notice. It has come out of discussions in October. It is being held so that the bishops are not all at loggerheads over this, so any fights and arguments are got out of the way before the meeting scheduled for January.”

The January meeting precedes the General Synod in February, when the Windsor Report and the crisis over homosexuality will be debated by bishops, clergy and laity in public for the first time.

The bishops are meeting on the day that Anglican evangelicals publish their own report warning that the Church’s Bible-based stance against active same-sex relationships, agreed at the 1998 Lambeth Conference, should not be “gradually eroded”.

The crisis, precipitated by the ordination of the openly gay cleric Gene Robinson in the US and the authorisation of same-sex blessings in New Westminster, Canada, has brought the Church close to schism.

But in their assessment, Anglican Mainstream, the lobbying group set up to campaign against the appointment of Dr Jeffrey John as Bishop of Reading, and the Church of England Evangelical Council say that the Windsor Report has “fallen short” in recognising “the reality of human sin within the Church”.

The evangelicals say that the report does not go far enough in calling for repentance.

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