I would happily, sometimes more than happily, have vacated my role as an animal theologian, if there were others prepared to take my place.

Although Christianity has a poor record on animals (as it does, it must be said, on the treatment of slaves, women, children, and gays), it is also the case that Christian theology, when creatively and critically handled, can provide a strong basis for animal rights.

If tomorrow we decided only to desist from killing and causing suffering for sport and entertainment, the world would be significantly better for animals. Even this we have failed to achieve.

The biblical case for vegetarianism does not rest on the view that killing may never be allowable in the eyes of God, rather on the view that killing is always a grave matter. When we have to kill to live we may do so, but when we do not, we should live otherwise.

We can't change the world for animals without changing our ideas about animals. We have to move from the idea that animals are things, tools, machines, commodities, resources here for our use to the idea that as sentient beings they have their own inherent value and dignity.

It is an unfortunate fact that those people who are most eloquent in their demand for the conservation of animals are often those most eager to violate animal life at the first opportunity.

When I was in my teens I had a series of intensely religious experiences. They deepened my sense of God as the creator of all things. And they also deepened my sensitivity towards creation itself so that concern for God's creatures and animal rights followed from that. Some people think I'm an animal rights person who just happens, almost incidentally, to be religious. In fact, it's because I believe in God that I'm concerned about God's creatures. The religious impulse is primary.