One greater than the temple - Here the Saviour refers to himself, and to his own dignity and power. "I have power over the laws; I can grant to my disciples a dispensation from those laws. An act which I command or permit them to do is therefore right." This proves that he was divine. None but God can authorize people to do a thing contrary to the divine laws. He refers them again Matthew 12:7 to a passage he had before quoted (See the notes at Matthew 9:13), showing that God preferred acts of righteousness, rather than a precise observance of a ceremonial law.
Mark adds Mark 2:27 "the Sabbath was made for man, and not man for the Sabbath." That is, the Sabbath was intended for the welfare of man; it was designed to promote his happiness, and not to produce misery by harsh, unfeeling requirements. It is not to be so interpreted as to produce suffering by making the necessary supply of wants unlawful. Man was not made for the Sabbath. Man was created first, and then the Sabbath was appointed for his happiness, Genesis 2:1-3. His necessities, his real comforts and needs, are not to be made to bend to that which was made "for him." The laws are to be interpreted favorably to his real wants and comforts. This authorizes works only of real necessity, not of imaginary wants, or amusements, or common business and worldly employments.

In this place is one greater than the temple - Does not our Lord refer here to Malachi 3:1? Compare this with Hebrews 3:3. The Jews esteemed nothing greater than the temple, except that God who was worshipped in it. Christ, by asserting he was greater than the temple, asserts that he was God; and this he does, in still more direct terms, Matthew 12:8, The Son of man is Lord of the Sabbath - is Institutor and Governor of it. Compare this with Genesis 2:3 (note), and see the notes there.

But I say unto you,.... Who Christ knew would be ready to object, as above, and therefore prevents them, by saying,
that in this place is one greater than the temple; meaning himself, who was the Lord and Proprietor of the temple, and in his human nature the antitype of it; see John 2:19 and was infinitely more sacred than that. Some copies read "something greater"; referring either to the human nature of Christ, in which the Godhead dwells bodily, and so infinitely greater than the temple; or to the health of his disciples, which was in danger, through hunger: or to the ministry of the apostles, which, by satisfying nature, they were more capable of performing; either of which was of more moment than the sacrifices and service of the temple. Christ's argument is, that if the temple, and the service of it, excused the priests from blame, in doing things in it on the sabbath day, which otherwise might not be done; then much more might his presence, who was greater than the temple, excuse his disciples from blame in this action of rubbing and eating the ears of corn; which was done to satisfy hunger, and to render them the more capable of performing their ministerial function; and which was of more importance than the service of the priests.

But I say unto you, That in this place is one greater than the temple--or rather, according to the reading which is best supported, "something greater." The argument stands thus: "The ordinary rules for the observance of the sabbath give way before the requirements of the temple; but there are rights here before which the temple itself must give way." Thus indirectly, but not the less decidedly, does our Lord put in His own claims to consideration in this question--claims to be presently put in even more nakedly.

But I say unto you, that in this place is one greater than the temple. The thought is: If priests in the service of the temple can break the letter of the law and be blameless, how much more can the disciples of him who is the Lord of the temple do so in his service and by his authority?