LOL.
Protestant "churches"...
In quotes, no less. So we Bible-believing, God-fearing Protestants are not part of Christ's Church on earth?
Keep your figs or fruit of choice. I'll trust in the only vine.
II. The visible Church, which is also catholic or universal under the gospel (not confined to one nation as before under the law), consists of all those throughout the world that profess the true religion, together with their children; and is the Kingdom of the Lord Jesus Christ; the house and family of God, through which men are ordinarily saved and union with which is essential to their best growth and service. III. Unto this catholic and visible Church, Christ hath given the ministry, oracles, and ordinances of God, for the gathering and perfecting of the saints, in this life, to the end of the world; and doth by his own presence and Spirit, according to his promise, make them effectual thereunto. IV. This catholic Church hath been sometimes more, sometimes less, visible. And particular Churches, which are members thereof, are more or less pure, according as the doctrine of the gospel is taught and embraced, ordinances administered, and public worship performed more or less purely in them. V. The purest Churches under heaven are subject both to mixture and error: and some have so degenerated as to become apparently no Churches of Christ. Nevertheless, there shall be always a Church on earth, to worship God according to his will. VI. There is no other head of the Church but the Lord Jesus Christ: nor can the Pope of Rome in any sense be head thereof. etc...I. The catholic or universal Church, which is invisible, consists of the whole number of the elect, that have been, are, or shall be gathered into one, under Christ the head thereof; and is the spouse, the body, the fullness of Him that filleth all in all.
Sanctification can be achieved individually by members of Protestant communities, as Christ wills. They do not form a church inasmuch as they do not have a community of believers that strive for unity, maintain the sacraments of Holy Orders and Eucharist, and preserve the historical deposit of faith given the Apostles and the fathers of the Church, and in a specific way given St. Peter.
Bump for later read.
Hey! We are attached to the same vine, glory be!; we can not be plucked off; much more important to me is that we can not drop off.
I would say, with conditions -- some Protestant groups like Mormons, Jehovah's Witness, I'm sorry, but are too deviant from Apostolic teachings to be considered part of the Church. The Anglicans were close, but after Gene Rob, it doesn't seem so any more.