While the words "wall of separation of church and state" do not appear in the Constitution, they are a descriptive term that describes the free exercise and Establishment clauses. They were penned by Thomas Jefferson in the famous Danbury letter response to the Danbury, Connecticut, Baptists.
James Madison, the chief writer of the Constitution, wrote also about such a separation of church and state. Now, when you imagine a wall, you imagine something that is a wall on both sides. Obviously. But if you are Republican Congressman Louie Gohmert, then the wall is one way, he states during a sort of interview:
. … President Thomas Jefferson — we’re talking about the guy who coined the phrase “separation of church and state” — who said there should be a wall of separation between church and state. But it was to be a one-way wall, where the state would not dictate to the church, but the church would certainly play a role in the state.
No evidence for this statement whatsoever. Nothing in Jefferson's writings that could be taken in that way. Gohmert is a quasi theocratic politician who wants the government to advocate his personal religious beliefs and he will .up history to do so.
He simple wants the government, as evidenced by his statement, to have the ability to promote Christianity to non-believers. If he didn't believe so he wouldn't be advocating a one way wall, however that kind of wall would work, anyway.
By the way, groups such as Americans United for Separation of Church and State or Freedom From Religion Foundation are working to keep the long arm of theocracy away from our government and Constitution. Please give them your support.