Does It Matter that the Constitution Doesnt Say The Separation of Church and State

The phrase "the separation of church and state" is a shorthand description of a much more complicated interpretation of the constitutional text.

As such, whether it appears literally in the Constitution's text is not terribly important. What is important is whether this metaphor accurately captures the meaning of the constitutional guarantee of the First Amendment.

Source:
http://writ.news.findlaw.com/amar/20101022.html