Perfection in any aspect of our lives is something we will never accomplish. We may do some things better than other things, and better than other people, but still, regardless of our high achievement (and accolades in some circles) we will never arrive before God in a perfect state.
Being religiously imperfect is also our lot as humans. We may do everything possible to follow the Bible perfectly; yet we go over-board in one direction and fall far short in another. Not that we don't understand how human and fallible we are, but often we hold on to cherished traditions in our churches for decades without honestly understanding why; we refuse, deny, or don't understand the spiritual consequences of loading our traditional baggage on the shoulders of other Christians, and those seeking to become Christians.
Spiritual change does not come easily and without a fight. When we realize what we have believed for decades is dead wrong it's tough to admit our failures. We need to continually examine our belief system making the necessary changes the Word of God and our conscience demands.
Perhaps our unwillingness to honestly appraise our beliefs and spiritual condition is a product of our fear that a thorough investigation might take us out of our comfort zone and put us in uncharted waters. Change is scary, but often necessary, especially if we are to ever unite with other Christians that also dread change.
Unity in the Christian community will only occur when we finally decide to make a concerted effort to understand our brothers and sisters in other churches rather than focusing on their glaring errors and glossing over their attributes. By dropping our preconceived ideas that have no scriptural basis, and realizing that we are far from perfect, we just might have grounds for a united fellowship.
Like the turtle, we quickly seek spiritual refuge in our shell after we spout our church laws and opinions, and refuse to investigate or consider the thoughts of other Christians. Perhaps we grab the one and only authorized, acceptable, and approved King James Version (some people actually believe this) and bolster our preconceived ideas while happily reflecting on the merits of Christianity without having to be unequally yoked with the other so-called Christian groups.
Will the time ever come when churches will agree to disagree over their opinions, and still work together united to spread the love of God within their communities rather than promote discord? If churches with different names on their signs ever realize unity it will be because of our incessant prayer and God's intervention.