Adam Clarke on 1 Corinthians 3:12

If any men build - gold, silver, etc. - Without entering into curious criticisms relative to these different expressions, it may be quite enough for the purpose of edification to say, that, by gold, silver, and precious stones, the apostle certainly means pure and wholesome doctrines: by wood, hay, and stubble, false doctrines; such as at that time prevailed in the Corinthian Church; for instance, that there should be no resurrection of the body; that a man may, on his father's death, lawfully marry his step-mother; that it was necessary to incorporate much of the Mosaic law with the Gospel; and, perhaps, other matters, equally exceptionable, relative to marriage, concubinage, fornication, frequenting heathen festivals, and partaking of the flesh which had been offered in sacrifice to an idol; with many other things, which, with the above, are more or less hinted at by the apostle in these two letters.