The civil rights of none shall be abridged on account of religious belief or worship, nor shall any national religion be established, nor shall the full and equal rights of conscience be in any manner, or on any pretext, infringed.

James Madison (1751-1836) American statesman, political theorist, US President (1809-17)

In The Congressional Register (8 Jun 1789)
    (Source)

Motion made by Madison which became the "freedom of religion" clause in the First Amendment to the US Constitution.