Read this excerpt from the English Bill of Rights.

That the freedom of speech and debates or proceedings in Parliament ought not to be impeached or questioned in any court or place out of Parliament.

According to this excerpt, members of Parliament are allowed to

practice any religion they choose.
have a trial by jury.
communicate opinions and ideas.
share power with the monarchy.

communicate opinions and ideas.

According to this excerpt, members of Parliament are allowed to communicate opinions and ideas.