What does the "One" mark of the Church signify?

The "One" mark of the Church primarily signifies unity among believers. This concept emphasizes that all members of the Church are called to be united in faith, purpose, and worship, reflecting the belief that there is one body of Christ. This unity is essential to the Church's identity and mission, as it indicates that despite differences in culture, language, and practices, all Christians are part of one family in Christ. The New Testament highlights this unity, reminding believers that they are one in the Spirit and should strive to maintain this unity through love and peace.

While community life is certainly important within the Church, the mark of "One" specifically focuses on the broader concept of unity among all believers, transcending local communities and individual church identities. Thus, the core meaning behind the "One" mark is about how individuals come together as one body, promoting a collective identity in the faith.