The Catholic Church – with the capital C – is basically made up of :
1) The Papacy – The Pope is indeed not called pope, until much later. St. Peter is referred in the Bible as the “Rock” or “Shepherd”. Christ handed him the [keys] to the Kingdom of heaven.
2) The Eucharist – This is the true body and blood of our Lord Jesus Christ. Christ tells his apostles to take and eat it for this is his body which is given for them in memory of him. This is definitely not simply Memorial! Who for love of us would do that?
3) Mother Mary – She is definitely not mentioned many times in the Bible. “Behold your mother”,”Behold you Son”. These are the words which tells alot about Mary.