In Christianity Today, Alan Jacobs describes the enduring influence of the BCP and its importance to evangelical Christians:
The Book of Common Prayer is nearly 500 years old. Does it still make a difference for how we worship today?
I suppose that would depend on who you mean by “we”—there are millions of Christians worshipping in ways unaffected by the BCP, except insofar as they share common roots in Jewish and early Christian worship. But the reach of the BCP is more extensive than one might think. It has relatively direct connections to Methodist and Lutheran worship. And the liturgical scholarship that, in the early 20th century, went into possible revisions of the Church of England’s 1662 book eventually made its way not only into modern Anglican prayer books but even had an influence on liturgical developments in the Roman Catholic Church, especially when vernacular Masses were approved at Vatican II.
And then, of course, the BCP’s rite for Holy Matrimony has spread throughout the English-speaking world. I was once a groomsman in a Unitarian wedding that used it—though with all Trinitarian references gently excised.
So all in all, the BCP’s influence on Christian worship is kind of a big deal.
Read the rest of the interview here.