Which are those four signs in the church of Christ?
The church of Christ must be one ,Holy, Universal and Apostolic.
What kind of church (society or organization) did Christ found?
Christ founder one, united, visible church, He founder one organization or society which can be seen by men, the member of which are joined together as, for example, the people of one tribe are joined together by speaking one language.
What did Christ mean when he said his church must be one?
He mean that it must be one (I.e. united) in teaching. One in government and one in worship.
Show me how the church is one?
The Catholic church, and no other, is ONE.
If you ask all Catholic priests in different parts of the world to explain to you the teaching of the Catholic church, you will receive the same answer. If you read catecatechisms from China, Japan, India, Nigerian , Europe, or America, written in different language, you will find the the same teaching s.
Ask any of the 40,000,000 Catholics in any part of the world who is the head of the Catholic church on earth, who is the representative of Christ on earth, who is the successor of st. Peter . All will give you the same answer; the pope-papa.
All over the world, you will find the same worship of God, especially holy Mass.
