It may surprise Christians to discover that Martin Luther candidly admitted that the Catholic Church traces itself back to the Apostles, that it genuinely has Apostolic Succession, despite having (in Luther’s erroneous view) corrupted itself throughout time.
Here is Luther in his own words. All emphasis is mine:
Today the pope and his crowd cry out against us that they are the church, since they have received Baptism, the Sacrament, and Holy Writ from the apostles and are their successors. They say: “Where else should God’s people be than where His name is praised, and where the successors and heirs of His apostles are to be found? Surely the Turks, the Tartars, and the heathen cannot be His people. Therefore we must be His people; otherwise it will be altogether impossible to find a people of God on earth. Consequently, he who rebels against us resists the Christian Church and Christ Himself.” This will surely offend and repel anyone who is not armed with different weapons and different strength, who listens only to such opinions of the most eminent and influential people on earth. “You are a heretic and an apostle of the devil,” “You are preaching against God’s people and the church, yes, against God Himself.” For it is exceedingly difficult to deprive them of this argument and to talk them out of it.
Yes, we ourselves FIND IT DIFFICULT TO REFUTE IT, especially since WE CONCEDE—AS WE MUST—that so much of what they say IS TRUE: that the papacy has God’s Word and the office of the apostles, and that we have received Holy Scripture, Baptism, the Sacrament, and the pulpit FROM THEM. What would we know of these if it were not for them? Therefore faith, the Christian Church, Christ, and the Holy Spirit must also be found AMONG THEM. What business have I, then, to preach against them as a pupil preaching against his teachers? Then there come rushing into my heart thoughts like these: “Now I see that I am in error. Oh, if only I had never started this and had never preached a word! For who dares oppose the church, of which we confess in the Creed: I believe in a holy Christian Church, etc.? Now I find this church in the papacy too. It follows, therefore, that if I condemn this church, I am excommunicated, rejected, and damned by God and all the saints.”
For the name “church” includes many scoundrels and rascals who refused to obey God’s Word and acted contrary to it. Yet they were called heirs and successors of the holy patriarchs, priests, and prophets. To be sure, they had God’s Law and promise, the temple, and the priesthood. In fact, they should have been God’s people; but they practiced idolatry so freely under the cloak of the name “church” that God was forced to say: “This shall no longer be My temple and priesthood. My people shall no longer be My people. But to those who are not My people it shall be said: ‘You are sons of the living God’.” Luther’s Sermons on John 16 [LW 24:303-304]
FURTHER READING
MARTIN LUTHER, JAMES & NT CANON
Answering Islam Blog 
One thought on “LUTHER ON THE CATHOLIC CHURCH”