"We do here solemnly record our conviction that unity will be most effectually promoted by maintaining the faith in its purity and integrity, as taught in the Holy Scriptures, held by the primitive Church, summed up in the Creeds, and affirmed by the undisputed General councils."
At least this is what they said at the Lambeth Conference of 1867. It would be wonderful if they could have reaffirmed this at the one just ended. St Luke's version of it, recorded in Acts 2:42 goes "They devoted themselves to the apostles' teaching and to the fellowship, to the breaking of bread, and to prayer." But this is the teaching and the practise of the classical prayer books when followed closely and exactly, both in the letter and in the spirit which is why the evil one so seeks to destroy us.