The law is a code of rules that all people in a certain society must follow.
In the United States, the law is comprised of legislative acts creating statutes, court decisions, executive orders and rules and regulations promulgated by administrative agencies. In certain circumstances, censoring liberal activists have taken the position that the "law" also includes any action by government actors, including prayer by teachers in schools. It is through this flawed assumption that liberals have been successful in censoring prayer in schools. The position that the actions of a school teacher are tenuous at best, and had no basis in real law until liberal activist judges gave it substance in school prayer cases in order to further their ideological preferences.