If anyone imagines that he knows something, he does not yet know as he ought to know.
2. And if any man thinketh That man thinketh that he knoweth something, who is delighted with the opinion that he entertains of his own knowledge, and despises others, as if he were far above them. For Paul does not here condemn knowledge, but that ambition and haughtiness which ungodly men contract in consequence of it.
The apostle comes here to the case of things that had been offered to idols, concerning which some of them sought satisfaction: a case that frequently occurred in that age of Christianity, when the church of Christ was among the heathen, and the Israel of God must live among the Canaanites.
Commenting on 1 Corinthians 8:1-3
And if any man think that he knows anything,.... Whoever has an opinion of himself, or is conceited with his own knowledge, and fancies that he knows more than he does; which is always the case of those that are elated with their knowledge, and treat others with contempt, and have no regard to their peace and edification: he knoweth nothing yet as he ought...