blog copypasta, so it’s hard to source. here’s one example, but i’ve found versions as old as early 2006.

http://episcopalprincess.blogspot.com/2008/06/garrison-keill...

worth noting that lutherans and episcopalians are in full communion now, so the line blurring is somewhat officially sanctioned

https://blogs.elca.org/eirr/called-to-common-mission-the-lut...