As believers, the journey we share is one of common submission rather than common understanding. We are united as Christians in submitting to God even when our thoughts about and descriptions of God differ.
The same can be said of scripture, or the historic creeds. We place ourselves under the authority of God's revealed Word and seek to live intentionally in ways reflective of the Word.
We don't and won't see all of scripture the same. Common understanding is sometimes what we enjoy, but it is not the essence of our community. Our unity isn't built on our understanding.
We can all recite the Apostles' Creed, and in doing so submit ourselves to a mystery we believe is expressed in those words. We believe that the words talk about God, but don't define God. Our understanding of the words of the creeds aren't as important as hearts that believe in the God the creeds point to.
Repeating the faith is our submission to a historical stream enlivened by the Spirit. We are saying this isn't about us, but about God.
We are together through the person of God, and what we have in common with one another in our humanity is submission. Our bond is what we acknowledge we don't have (competency, hence we submit) rather than what we might think we have (knowledge and understanding).
A community of selflessness.