I apologise to the noble and learned Baroness. For my part, I cannot accept that a public official is entitled to protection against the requirement to perform his or her basic obligations in relation to the official duties which they are contracted to perform. As was pointed out in Committee, a judge or a magistrate who administers the law of the land cannot refuse to administer laws to which he or she objects. The law may well be clarified after that judge or magistrate has been appointed. No doubt some registrars have a conscientious objection to marrying divorced couples; I cannot see that a conscientious objection to same-sex marriage is any different.
Of course, as has been pointed out, the law does allow, in various contexts, for conscientious objections, including doctors and abortion and teachers and religious education. Sunday trading was mentioned by the noble and learned Lord, Lord Mackay of Clashfern. The difference, as I see it, is that the registrar is performing the function of the state, and the function of the state in this respect is to marry people. The law, not the registrar, determines who is eligible to marry. It is unfortunate if registrars take the view that they cannot continue to perform this role, but no one is asking them to approve of or bless same-sex marriage; all that they will be required to do is to perform the official function that they have contracted to undertake.