This phrase "separation of church and state is not in the Constitution. The First Amendment says "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof... This prevents government from establishing a national church. However, it does not prevent God from being. acknowledged in schools and government buildings.
Support the separation of church and state. Religious expression has no place in government or the schools. Due to the diversity of our country no religious decorations or preaching should be allowed on government property.