Given the vast differences in doctrine, practice, and historical background, it's highly unlikely that all Christians would unite under a single existing denomination. However, if such a unification were to occur, here are some possibilities and why they might (or might not) be chosen:
Highly Unlikely Choices (due to significant doctrinal differences):
* Catholicism: The Catholic Church has a hierarchical structure, specific doctrines about the Pope, sacraments, and Mary that are not accepted by many Protestants and some Orthodox Christians.
* Eastern Orthodoxy: Similar to Catholicism, Orthodoxy has distinct theological and liturgical traditions, including views on icons, the papacy, and the Holy Spirit, that are not shared by many Western Christians.
* Any specific Protestant denomination (e.g., Presbyterian, Methodist, Baptist, Pentecostal): Each of these denominations has unique beliefs about salvation, baptism, church governance, and other issues that would be unacceptable to many other Christians.
More Plausible (but still very challenging) Scenarios:
* A Newly Formed Church: The most likely scenario is that a new church body would need to be created, one that attempts to synthesize core Christian beliefs while allowing for diversity in non-essential areas. This would require significant compromise and a willingness to let go of denominational distinctives.
* Focus on Core Beliefs: Such a church might emphasize the Nicene Creed as a foundational statement of faith.
* Emphasis on Shared Practices: It might focus on common practices like Bible reading, prayer, evangelism, and social justice.
* Decentralized Structure: To accommodate different views on church governance, it might adopt a more decentralized or congregational model.
Factors that would Influence the Choice (if not a new church):
* Size and Influence: Larger denominations might have an advantage, as they possess more resources and a wider reach.
* Historical Significance: A denomination with a long and respected history might be seen as a more stable foundation.
* Doctrinal Flexibility: Denominations that are more open to interpreting scripture in different ways might be more appealing to a wider range of Christians.
* Commitment to Ecumenism: Denominations that have actively participated in ecumenical dialogue and合作 might be seen as more willing to compromise and work with others.
Challenges to Unification:
* Doctrinal Differences: Disagreements on issues such as salvation, the sacraments, the role of the Bible, and the nature of God are major obstacles.
* Church Governance: Different denominations have different structures of authority, ranging from hierarchical to congregational.
* Cultural and Historical Factors: Denominations have often developed in specific cultural contexts, and these differences can be difficult to overcome.
* Power and Authority: The question of who would lead a unified church and how decisions would be made is a major point of contention.
* Tradition: Many Christians are deeply attached to their denominational traditions and are reluctant to abandon them.
In conclusion: The idea of all Christians uniting under one denomination is a complex and challenging one. It would require a level of compromise, understanding, and willingness to let go of denominational distinctives that is rarely seen in the Christian world. While a new church formed on core beliefs with a decentralized structure is the most plausible scenario, even that would face significant hurdles.