Bob..again let me just affirm to you that I believe it's from our hearts and what motivates us that the Lord cares most about.
It is important for there to be "order" in any House of the Lord as it is in a family ...children (or new converts) were expected to submit to the teachings of the elders who were ordained and there were clear instructions given as to how those who wanted to serve were to live their lives before the world..
as "husband of ONE WIFE" etc.
They were the example to the church of what JESUS HIMSELF looks like in character.
Right now in the Presbyterian Church where we attend the teaching pastor is presenting a series on marriage as God has ordained marriage (between one man and one woman) from the beginning of time (Genesis) and how the CHURCH is to be a picture to the world of the HOLY BRIDE our Lord Jesus is coming for..faithful, pure, committed to HIM in spirit and in truth.
This is not a PCUSA church but the same teaching has been given by the PCUSA pastors we sat under for many years who were both godly men and held to the truth of scripture as being our only guide when it comes to what it is the LORD CALLS GOOD.
I am most certain that there are many true believers and ministers who are yet within each denomination called by Jesus' Name who are grieved and hurt over all of the divisions and confusion brought about through proud, arrogant, unrepentant men and women who think it not only their "right" but "responsibility" to ursurp God ordained authority while exalting false doctrines, teachings and self made gods (or images called by HIS NAME) in place of our LIVING LORD and CHRIST.
His OWN recognize HIM in the least of our brethren..His OWN recognize HIS VOICE and will never follow another.
I think we can safely hold onto that if nothing else and hopefully agree to disagree on the least important of issues right now..
"why strain at gnats while swallowing camels"
Communion is an important issue and indeed I'd hope we might maintain the unity of the spirit by loving one another until we can all come into the unity of doctrine..
it is going to be my honest effort to continue discussing with my closest family and friends who are Roman Catholic this concern and hopefully if nothing else provoke thought so they might themselves look to Scripture and to the very Lord who they profess to believe for the answer.
Unless they can hear HIS VOICE they can't know any more than any of us can WHO is telling the TRUTH or WHO IS LYING.