As a man of great learning and humility, he has guided the church through times of challenge and change. He has sought to unite different communities and offer a profoundly humane sense of moral leadership that was respected by people of all faiths and none. As Prime Minister, I have been grateful for his support and advice and for the work he has done around the world, particularly in Africa where he has taken such a close interest in the Sudan.
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The chancellor now faces the prospect of forming a minority government or calling for a snap election.
The 73-year-old said a return is unlikely "given the politicised atmosphere that seems to have afflicted our set."
Chancellor Philip Hammond said the UK will make a financial proposal to the EU in the next three-and-a-half weeks.