But he answered ... - They accused him of violating their traditions, as though they were obligatory.

In his answer he implied that his disciples were not bound to obey their traditions - they were invented by human beings. He said, also, that those traditions could not be binding, as they violated the commandments of God. He proceeded to specify a case in which their tradition made void one of the plain laws of God; and if that was their character, then they could not blame him for not regarding them.

Why do ye - transgress the commandment - Ye accuse my disciples of transgressing the traditions of the elders - I accuse you of transgressing the commands of God, and that too in favor of your own tradition; thus preferring the inventions of men to the positive precepts of God. Pretenders to zeal often prefer superstitious usages to the Divine law, and human inventions to the positive duties of Christianity.

But he answered and said unto them,.... Taking no notice of the tradition about eating bread without washing the hands, whether it was right or wrong; it being at most but an human tradition, of no moment and importance, whether it was broke or kept; he makes a very just recrimination, by putting another question to them,

why do you also transgress the commandment of God by your tradition? suggesting, that, if his disciples were guilty, they were not so guilty as they themselves were; that his disciples, at most, were but guilty of the breach of an human precept, whereas they were guilty of the breach of a divine command; and that it was strange, that men who were so scrupulous of breaking, and bore so hard on such as did transgress the traditions of the elders, could allow themselves to transgress the commandments of God; yea, to do this by, and while they were observing their own traditions: and which observation carries a full acquittance of the disciples from blame; for, if by keeping the traditions of the elders, they broke the commands of God, it was a very good reason why they should not observe them.

Also (καὶ)

The significance of this little word must not be overlooked. Christ admits that the disciples had transgressed a human injunction, but adds, "Ye also transgress, and in a much greater way." "Whether the disciples transgress or not, you are the greatest transgressors" (Bengel). The one question is met with the other in the same style. Luther says, "He places one wedge against the other, and therewith drives the first back."

{2} But he answered and said unto them, Why do ye also transgress the commandment of God by your tradition?

(2) Their wicked boldness in corrupting the commandments of God (and that upon the pretence of godliness) and usurping authority to make laws, is reproved here.

15:3 Why do ye also transgress? The Lord does not deny their charge, but strikes at the evil by showing that their human traditions led them to break God's written law.

15:3 They wash not their hands when they eat bread - Food in general is termed bread in Hebrew; so that to eat bread is the same as to make a meal.

3. But he answered and said unto them, Why do ye also transgress the commandment of God by your tradition?-The charge is retorted with startling power: "The tradition they transgress is but man's, and is itself the occasion of heavy transgression, undermining the authority of God's law."

15:1-9 Additions to God's laws reflect upon his wisdom, as if he had left out something which was needed, and which man could supply; in one way or other they always lead men to disobey God. How thankful ought we to be for the written word of God! Never let us think that the religion of the Bible can be improved by any human addition, either in doctrine or practice. Our blessed Lord spoke of their traditions as inventions of their own, and pointed out one instance in which this was very clear, that of their transgressing the fifth commandment. When a parent's wants called for assistance, they pleaded, that they had devoted to the temple all they could spare, even though they did not part with it, and therefore their parents must expect nothing from them. This was making the command of God of no effect. The doom of hypocrites is put in a little compass; In vain do they worship me. It will neither please God, nor profit themselves; they trust in vanity, and vanity will be their recompence.