or religious society whose rights and usages are well known and to a great extent defined and established by law."(24)
*21.* Doctrine, Constitution.--A church in law is a mere fraternal organization. It may or may not have a written constitution, but it must have some central doctrine as its foundation or constitution.(25) Many of the Protestant denominations claim that the entire Bible is their constitution. The Jews may be said to consider the Old Testament as their constitution. All revealed truths may be said to be the constitution of the Catholic Church,(26) and when a doctrine concerning faith or morals is authoritatively declared by the Church to be a truth, it becomes a dogma.(27) The Apostles' Creed is an example of several dogmatic truths. The code of the Church is the Ten Commandments. A few sects, by a majority vote, make and change their constitutions at will.
*22.* By-Laws.--By-laws of the different religious organizations differ widely, from the decrees of the gr