Dear look at this new prayer book I'm going to introduce.
That's wonderful my dear. Everybody will love it ;)
Yes, he never listens to us.
We need to have it with him
Our king is rubbish
Do you think our King is a secret Catolic?
Yes we do need to get rid of him but how would next in line?
We need to get rid of our king
But I rule England so I make the decision whether I get my tax money or not.
You are not getting your tax money as you are not listening to your people.
King Charles I wants to introduce a new Armenian prayer book which had traits of Catholicism in it. This made the Protestants think he was trying to introduce Catholicism. His marriage to Henrietta Marie of France in 1625 didn't help.
The Protestants start to think that Charles I is secretly a Catholic and this makes them question his behaviour.
Parliament withhold taxes that the monarch desperately relies on as the King wouldn't listen to the people. The King thinks Parliament exists to enforce this tax but Parliament believes that they are a forum to listen to the people.