Mark Shea tries to show the superiority of Roman Catholics to Protestants by arguing that Protestant opposition to divorce relies not on Scripture alone but also on tradition:
One basic rule of thumb to understand in Catholic/Protestant conversations is that it is not the case that Catholics rely on Sacred Tradition and Protestants don’t. Rather, Catholics (and, by this, I mean “educated Catholics speaking out of the Magisterial teaching of the Church”) rely on Sacred Tradition and know they do, while Protestants rely on (parts) of Sacred Tradition and (usually) don’t know they do.
So, for instance, despite Paul’s prescriptions (directed only at clergy of his day) that a man must be the husband of but one wife, nowhere in the text of Scripture is it made clear that Christian marriage must be monogamous for all (a fact that did not escape Luther or John Milton).
In point of fact, our Lord Jesus Christ may have spoken directly to Mark’s concern in the pages of holy writ:
Jesus also addressed the question of multiple wives and divorce and said it merely a concession to the Israelites but a violation of what God instituted at creation:
Matt. 19:4–6. And he answered and said unto them, Have ye not read, that he which made them at the beginning made them male and female, and said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh? Wherefore they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder.
Matt. 19:8–9. He saith unto them, Moses because of the hardness of your hearts suffered you to put away your wives: but from the beginning it was not so. And I say unto you, Whosoever shall put away his wife, except it be for fornication, and shall marry another, committeth adultery: and whoso marrieth her which is put away doth commit adultery.
I know Paul wasn’t pope, but maybe he was still an apostle:
1 Cor. 7:2. Nevertheless, to avoid fornication, let every man have his own wife, and let every woman have her own husband./blockquote>
I understand that Mark’s conversion may look better if evangelicals look more foolish than he is. But at least let’s get the Bible straight before we start to wade into the murky world of tradition.