You’ll have no problem convincing confessional Lutherans on the necessity of the Church, where you’ll have problem is convincing us that that our church doesn’t preach and proclaim the the Gospel and administer the sacraments.
This encyclical has some great teaching, but where it falls short, is that it reminds me of polemical “One True Church” arguments.
Well, according to the Protestant theory, the Church would be the assembly of all the faithful united to Christ. But there is no external or visible bond which unites them to one another. If there be any bond, it is invisible; it is solely between Christ and the individual’s soul. This theory allows no place for a social spiritual life. Everyone works out his salvation on his own account. Over this ununited multitude, without external sign by which it may be known, rules, in each particular soul, the invisible Christ, with no ministers, no vicars, with no visible rites for the conferring of grace.
Such theories give no regard to the most explicit of the teachings of Our Savior, of the Apostles and of the Fathers. They put aside the fact the Jesus Christ willed that there be one visible Church, with its officials appointed by Him and acting in His name; that He gave Himself without reserve to the Church, His Spouse; that no one can share in the graces of Christ save in and through the Church.
According to this Protestant theory what happens to the diverse function of different members? Where is the compact solidarity so often affirmed by St. Paul ( 1 Corinthians 12; Romans 12:4-8)? Where is the organism, so complex, yet so wholly one, to which Christ gave Apostles, prophets, evangelists, shepherds, doctors, charged to perfect by their ministry the faithful, to edify the Body of Christ, to insure their growth unto "the perfecct man: ( Ephesians 4:11-14), to protect the faithful from the excitements and changes of merely human doctrines? Where is that Body of which Christ is the Head, : from Whom the whole body, being compacted and fitly joined together, by what every joint supplieth, according to the operation in the measure of every part, maketh increase of the body unto the edifying of itself in charity? Where is the fruitful co-operation between all the members, promoting the benefit of the whole, of which the Apostle speaks?