A more thorough explanation:

Law spiritual, also known as ecclesiastical law, refers to the body of law that governs the doctrine and discipline of a particular church. It is derived largely from canon and civil law and is administered by the ecclesiastical courts.

For example, Anglican canon law is a type of ecclesiastical law that governs the practices and beliefs of the Anglican Church. The ecclesiastical courts would handle any legal disputes related to this type of law.

Overall, law spiritual is an important aspect of religious societies and helps to maintain order and consistency within a particular church or religious organization.