John Calvin's Commentary on the Bible - Matthew 15:7
Verse 7 7.Well hath Isaiah prophesied concerning you. Our Lord now proceeds farther; for he decides on the question in hand, which he divides into two clauses. The first is, that they relied on outward ceremonies alone, and set no value on true holiness, which consists in sincere uprightness of heart; and the second is, that they worshipped God in a wrong way, according to their own fancy. Now though his reproof of pretended and hypocritical holiness appears hitherto to be restricted to... read more
Adam Clarke's Commentary on the Bible - Matthew 15:9
In vain they do worship me, etc. - By the traditions of the elders, not only the word of God was perverted, but his worship also was greatly corrupted. But the Jews were not the only people who have acted thus: whole Christian Churches, as well as sects and parties, have acted in the same way. Men must not mould the worship of God according to their fancy - it is not what they think will do - is proper, innocent, etc., but what God himself has prescribed, that he will acknowledge as his... read more