Jesus welcomes his followers to HIS table of plenty. So, we as Anglicans (usually) are an open church and welcome all Christians to HIS table. Not all Anglican churches are open, but the vast majority are.
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THE QUESTION BEFORE US - ATTENDING OTHER PROTESTANT CHURCHES
I have a simple attitude. If I am attending another Anglican church, I would PRESUME that I was welcome to attend and to receive.
If I attend a local church of another denomination, I am a guest of whoever I am attending with. They understand the policy of their local church. I have no need to understand their national or international organization with its rules; I have made no pledge to abide by such rules. For example, if I were to attend a UMC church, I would abide by whatever the custom was at the local church. Either I am welcome to receive or I am not. The only decision I have is whether to accept or reject the hand of fellowhip if it offered.
Gurney can choose to reject the policies of the local church in favor of his personal understanding of the national or international church body. That is his personal choice. I find it presumtuous to reject an invitation bcause I don't think the Councill of Bishops, opr other national body, would think it proper.
Personally, for example, I would not even consider refusing to accept communion if it were offered at a funeral or wedding. I find that approach downright rude. Almost everyone understands such situations and go out of their way to be welcoming at such times.
The question has been asked with regard what it means to accept communion from someone we don't recognize the process as sacramental.
Many here seem to think that it wrong to accept communion with Christians who wish to commemorate the sacrifice of Jesus. If such an acceptance were required, I guess many here wouldn't receive in Naomi's church.
My BOTTOM LINE is that communion is the LORD'S TABLE, not the church's table. I find it strange to be invited over for fellowship and prayer, and then refuse to join them in the Feast of our Lord.
As far as I know, there is no Anglican rule that prohibits anyone from accepting communion in any other Protestant church.
And just BTW, I had the same attitude when I was attending the RCC. I explained that when I attended a Baptist or non-denominational service, I was attending a prayer service, bible study, with praise and worship. No one ever had any issues with this. And yes, at charismatic conferences, we did indeed have Presbyterians, Catholics, Anglicans and others all receiving at the same table. It was a bit awkward, but it was important for all of us to share the meal at the same table.
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JUST PERHAPS
we need to understand why we are Protestant in the first place, and not RCC, OO or EO. We recognize no pope with authority over us, and no patriarch with power over us. We recognize the authority of the local church. And, yes, we are one of the Protestant churches that recognize the authority of bishops.