While in Scotland, I had the opportunity to visit the Holyrood Palace in Edinburgh which served as the royal residence of Mary, Queen of Scots in the sixteenth century. Holyrood Palace is significant in Reformation history as the place where the Scottish Reformer John Knox was summoned to appear before the Catholic Queen to explain and defend the Protestant cause in Scotland. The first of these encounters is described in Knox’s History of the Reformation in Scotland, and what follows is an excerpt of that account. I find it a profitable read, for Knox’s responses to the Queen’s accusations and questions are surprisingly relevant to accusations and questions still raised against the Reformed Church today. As a quick prefatory note, I realize that the term Knox uses to denote Catholics — “papists” — can be perceived as derogatory. By using it below, I intend no offence to my Catholic friends, I only wish to reproduce what is written in the History for the sake of accuracy. The account begins by setting the stage:
Whether it was by counsel of others, or of Queen Mary’s own desire, we know not, but the Queen spake with John Knox at Holyrood and had long reasoning with him, none being present except the Lord James Stewart, while two gentlewomen stood in the other end of the house. The Queen accused John Knox that he had raised a part of her subjects against her mother and against herself…
John Knox. ‘God forbid that I ever take upon me to command any to obey me, or yet to set subjects at liberty to do what pleaseth them! My travail is that both princes and subjects obey God. Think not, Madam, that wrong is done you, when ye are willed to be subject to God…. Yea, God craves of Kings that they be foster-fathers to His Church, and commands Queens to be nurses to His people….’
Queen Mary. ‘Yea, but ye are not the Kirk that I will nourish. I will defend the Kirk ofRome, for it is, I think, the true Kirk of God.
John Knox. ‘Your will, Madam, is no reason; … the Church of the Jews was not so far degenerate from the ordinances which God gave by Moses and Aaron unto His people, when they manifestly denied the Son of God, as the Church of Rome is declined, and more than five hundred years hath declined, from the purity of that religion which the Apostles taught and planted.
Queen Mary. ‘My conscience is not so.’
John Knox. ‘Conscience, Madam, requireth knowledge; and I fear that right knowledge ye have none.’
Queen Mary. ‘But I have both heard and read.’
John Knox. ‘So, Madam, did the Jews who crucified Christ Jesus read both the Law and the Prophets, and heard the same interpreted after their manner. Have ye heard any teach, but such as the Pope and his Cardinals have allowed? Ye may be assured that such will speak nothing to offend their own estate.’
Queen Mary. ‘Ye interpret the Scriptures in one manner, and they in another. Whom shall I believe? Who shall be judge?’
John Knox. ‘Ye shall believe God, that plainly speaketh in His Word; and further than the Word teacheth you, ye shall believe neither the one nor the other. The Word of God is plain in itself. If there appear any obscurity in one place, the Holy Ghost, which is never contrarious to Himself, explaineth the same more clearly in other places; so that there can remain no doubt, but unto such as obstinately will remain ignorant.
‘Take one of the chief points, Madam, which this day is in controversy betwixt the Papists and us. The Papists have boldly affirmed that the Mass is the ordinance of God, and the institution of Jesus Christ, and a sacrifice for the sins of the quick and the dead. We deny both the one and the other. We affirm that the Mass, as it is now used, is nothing but the invention of man, and, therefore, is an abomination before God, and no sacrifice that ever God commanded. Now, Madam, who shall judge betwixt us two thus contending? It is no reason that either of the parties be further believed, than they are able to prove but insuspect witnessing. Let them prove their affirmatives by the plain words of the Book of God, and we shall give them the plea granted. What our Master Jesus Christ did, we know by His Evangelists; what the priest doeth at his Mass, the world seeth. Now, doth not the Word of God plainly assure us, that Christ Jesus neither said Mass, nor yet commanded Mass to be said, at His Last Supper, seeing that no such thing as their Mass is made mention of within the whole Scriptures?’
Queen Mary. ‘Ye are [too hard] for me, but if they were here whom I have heard, they would answer you.’
John Knox. ‘Madam, would to God that the learnedest Papist in Europe, and he that ye would best believe, were present with Your Grace to sustain the argument; and that ye would patiently abide to hear the matter reasoned to the end! Then, I doubt not, Madam, but ye should hear the vanity of the Papistical Religion, and how small ground it hath within the Word of God.’
Queen Mary. ‘Well, ye may perchance get that sooner than ye believe.’
John Knox. ‘Assuredly, if ever I get that in my life, I get it sooner than I believe. The ignorant Papists can not patiently reason, and the learned and crafty Papist will never come in your audience, Madam, to have the ground of their religion searched out. They know that they are never able to sustain an argument, except fire and sword and their laws be judges.’
Queen Mary. ‘So say you; but I can[not] believe that.’
John Knox. ‘It hath been so to this day. How oft have the Papists in this and other Realms been required to come to conference, and yet could it never be obtained, unless themselves were admitted for Judges. Therefore, Madam, I must say again that they dare never dispute, but when they themselves are both judge and party. Whensoever ye shall let me see the contrary, I shall grant myself to have been deceived in that point.’
With this, the Queen was called upon to dinner, for it was afternoon. At departing, John Knox said unto her: ‘I pray God, Madam, that ye may be as blessed within the Commonwealth of Scotland, if it be the pleasure of God, as ever Deborah was in the Commonwealth of Israel.'
In closing, I only want to highlight Knox’s response to the question that Mary posed, and Catholics today still pose, regarding the coherency of the Reformed commitment to sola Scriptura. When Mary asked, “Ye interpret the Scriptures in one manner, and they in another. Whom shall I believe? Who shall be judge?”, Knox offered this marvelous response: “Ye shall believe God, that plainly speaketh in His Word”. Now to Catholics, this may only beg the further question: if God speaks plainly in his Word, than why doesn’t everyone agree on what he means?
But this is to miss the conviction underlying Knox’s assertion. It is unbelief that requires certainty about what the Word says, for it is not content to simply rest in the One whose Word it is. Unbelief seeks the certainty of knowing things (e.g. articles of faith), whereas faith is ultimately the certainty of knowing the person to whom those things refer. When the person who speaks, rather than merely the things spoken by that person, is the ultimate object of trust, certainty is not diminished by disagreements over those things which may be more difficult to understand. Rather, faith rests in the confidence that “God … speaketh plainly in His Word” (he did, after all, intend for us to understand it!) and that “the Holy Ghost, which is never contrarious to Himself, explaineth the same more clearly in other places”. In other words, Knox’s faith did not fundamentally repose in his personal understanding of Scripture but in the God whose Word Scripture is. He had faith in God, not faith in his own faith.
For Knox, what mattered was not “his own personal interpretation” of the Scriptures. His argument before the Queen was not “my interpretation is better than your interpretation”. Rather, it was in essence: “let God’s interpretation of his Word judge all of ours!” Unlike the pope in Rome, Knox demanded no obedience to his own interpretation of Scripture. What he demanded was obedience to the God who speaks through the Scriptures, and that meant that his own interpretation was just as much subject to the judgment of the Word as was that of his Catholic interlocutors. Inasmuch as certain elements of Catholic teaching could not be found in that Word, Knox firmly insisted that it was necessary to obey God rather than man.
Or in this case, a woman.
 John Knox, The History of the Reformation in Scotland (Edinburgh; Carlisle, PA: The Banner of Truth Trust, 2010), 271-272, 279-282.