Here is the full text of John Bercow’s resignation statement.

Colleagues, I would like to make a personal statement to the house. At the 2017 election I promised my wife and children that it would be my last. This is a pledge that I intend to keep. If the house votes tonight for an early general election, my tenure as Speaker and MP will end when this parliament ends.

If the house does not so vote, I have concluded that the least disruptive and most democratic course of action would be for me stand down at the close of business on Thursday, 31 October. Least disruptive because that date will fall shortly after the votes on the Queen’s speech expected on 21 and 22 October.