In his commentary on 2 Tim 3:16 Calvin writes
First, he commends the Scripture on account of its authority; and secondly, on account of the utility which springs from it. In order to uphold the authority of the Scripture, he declares that it is divinely inspired; for, if it be so, it is beyond all controversy that men ought to receive it with reverence. This is a principle which distinguishes our religion from all others, that we know that God hath spoken to us, and are fully convinced that the prophets did not speak at their own suggestion, but that, being organs of the Holy Spirit, they only uttered what they had been commissioned from heaven to declare. Whoever then wishes to profit in the Scriptures, let him first of all, lay down this as a settled point, that the Law and the Prophets are not a doctrine delivered according to the will and pleasure of men, but dictated by the Holy Spirit.
And then –
If it be objected, “How can this be known?” I answer, both to disciples and to teachers, God is made known to be the author of it by the revelation of the same Spirit. Moses and the prophets did not utter at random what we have received from their hand, but, speaking at the suggestion of God, they boldly and fearlessly testified, what was actually true, that it was the mouth of the Lord that spake. The same Spirit, therefore, who made Moses and the prophets certain of their calling, now also testifies to our hearts, that he has employed them as his servants to instruct us. Accordingly, we need not wonder if there are many who doubt as to the Author of the Scripture; for, although the majesty of God is displayed in it, yet none but those who have been enlightened by the Holy Spirit have eyes to perceive what ought, indeed, to have been visible to all, and yet is visible to the elect alone. This is the first clause, that we owe to the Scripture the same reverence which we owe to God; because it has proceeded from him alone, and has nothing belonging to man mixed with it.
But most importantly for present purposes
And is profitable – Now follows the second part of the commendation, that the Scripture contains a perfect rule of a good and happy life. When he says this, he means that it is corrupted by sinful abuse, when this usefulness is not sought. And thus he indirectly censures those unprincipled men who fed the people with vain speculations, as with wind. For this reason we may in the present day, condemn all who, disregarding edification, agitate questions which, though they are ingenious, are also useless. Whenever ingenious trifles of that kind are brought forward, they must be warded off by this shield, that “Scripture is profitable.” Hence it follows, that it is unlawful to treat it in an unprofitable manner; for the Lord, when he gave us the Scriptures, did not intend either to gratify our curiosity, or to encourage ostentation, or to give occasion for chatting and talking, but to do us good; and, therefore, the right use of Scripture must always tend to what is profitable.
The third paragraph could as easily be leveled at the Sophists of today as it was at the Sophists of Calvin’s day- whose interest in Scripture isn’t determined by any desire to be profited by it but to treat it as a curiosity, an antiquity that needs to be excavated but whose meaning is meaningless for daily life.
- Calvin as Old Testament Scholar (zwingliusredivivus.wordpress.com)