Whenever we see that the opinions of the fathers are not in agreement with Scripture, we respectfully bear with them and acknowledge them as our forefathers; but we do not on their account give up the authority of Scripture. Aristotle’s statement in the first book of his Ethics is well put and true: “Better it is to defend the truth than to be too much devoted to those who are our friends and relatives.” And this is, above all, the proper attitude for a philosopher. For although both; truth and friends, are dear to us, preference must be given to truth. If a pagan maintains that this must be the attitude in secular discourses, how much more must it be our attitude in those which involve the clear witness of Scripture that we dare not give preference to the authority of men over that of Scripture! Human beings can err, but the Word of God is the very wisdom of God and the absolutely infallible truth.
-Martin Luther, from his Lectures on Genesis