Are you referring to the United Kingdom? Because there is no formal difference between 'spiritual' and 'temporal' power in the upper house, only a difference in

Are you referring to the United Kingdom? Because there is no formal difference between 'spiritual' and 'temporal' power in the upper house, only a difference in how the peer gets into it. All bishops in the House of Lords (which is only a fraction of bishops in the Church) can vote on the same motions that the lords can, and some of them (but not that many) choose to do so.