What does the word Church means?

The Apostles' Creed is the summary of our Catholic Faith as it was taught by the apostles by the Lord Jesus Christ; in Article 9 it proclaims: "I believe in ....the Holy, Catholic Church, the communion of saints."  Here, we Catholics  express our belief that Jesus Christ has founded only One True Church, the Holy Catholic Church. This means that all these Christian sects and denominations were not founded by Jesus Christ. Although these groups claimed that their particular church is the true church founded by Jesus Christ directly or through prophecy, and they also claimed that all their teaching came directly from the Bible. Though these groups hold that the Bible must be the sole basis of all teachings and doctrines, yet all of them differ and contradict each other in matter of teachings and doctrines and religious practices.
Now to begin with, let us explained first the meaning of the word "church" as it is used in the New Testament. Many people believe that a Church is a building, a house of worship where anyone goes every Sunday to participate at the Holy Mass, or a Worship Services, or any form of worshipping God. However, we will discuss here, about the Church in the context of New Testament. So, we can read in Ephesians 5:23 "For the husband is the head of the wife as Christ is the head of the CHURCH, his BODY, of which he is the Savior." Also in Colossians 1:18 "And he (Christ) is the head of the BODY, the CHURCH;...." The apostle Paul when he uses the word Church he is referring to the Church - as the body of Christ and Christ himself is the head of that body. What kind of body Paul is referring to? definitely the verse was not referring to the physical body of Christ. In 1 Cor. 12:12-13, 27 "12.The body is a unit, though it is made up of many parts; and though all its parts are many, they form one body. So it is with Christ. 13. For WE ARE ALL BAPTIZED by one Spirit INTO ONE BODY - whether Jews or Greeks, slaves or free - and we were all given the one Spirit to drink. 27 Now YOU ARE THE BODY OF CHRIST, and each one of you is a part of it." So the body of Christ refers to all the baptized believers and not to the physical body of Christ. Therefore, the Church is the body of Christ - a group of all baptized believers and a person can become a part of the Church through baptism. The New Testament was written in Greek, and the Greek word for the church is “ekklesia” a combination of two Greek words “ek” which means “out of” and “kalein” which means “to call”; so the etymological or the literal meaning of the word “ekklesia” is “called out ones” or “called out assembly” -so for Christians ecclesia means an assembly of persons who were called out of darkness towards the marvelous light of God. “But you are a chosen people, a royal priest priesthood, a holy nation, a people belonging to God, that you may declare the praises of him who called you out darkness into his marvelous light.” 1 Peter 2:9   The Catholic Church defines Church as the Mystical Body of Christ - the congregation of all baptized persons united in one true faith and sharing the same sacraments under the authority of the Pope. What else do we know about the Church? Eph.4:4-5 "There is ONE BODY, and one Spirit -just as you were called to one hope - when you were called - 5 one Lord, one faith, one baptism," So there is only one body, meaning to say that there is only ONE CHURCH with one Lord, one faith and one baptism. This is very clear. This is in confirmation with the very words of Jesus Christ, John 10:16 "I have other sheep that are not of this pen. I must bring them also. They too will listen to my voice and there shall be ONE FLOCK, and ONE SHEPHERD." Also we can read in John 17:16b "...Holy Father, protect them by the power of your name - the name you gave me - so that they may be ONE as we are ONE.". So there is only one body of Christ - ONE TRUE CHURCH!!! But what do we find nowadays hundreds of churches claiming to be of Christ but they were contradicting and hurting each others?- which of these sects and denominations really belong to Jesus Christ? Are all of them founded by Jesus Christ? Is Christ divided into many Christian sects and denominations - remember that these groups were teaching different doctrines from one each other – are all of them teaching the Truth? But they were different from each other, so if one of them is teaching the Truth then the rest are not. History both secular and ecclesiastical has recorded and preserved the development of the true Church founded by Jesus Christ from her humble beginning in the first century up to the present time. No matter how good explanations our detractors made to divert the history of the Church, the very fact of it can never be thwarted nor altered nor annihilate it. In our next sharing we will discuss about, "How sure are we that among these hundreds of Christians churches, "the Catholic Church is the True Church founded by Jesus Christ!". Friends I am inviting you to join me in this apostolate. Please feel free to share your comments, poems, songs, original compositions, questions and experiences that will help each one of us to grow, strengthen our faith as we wait for the coming of the Lord. Thank you for your patience. God bless us all!!!