Matthew 12:2-8

Verse 2

Thy disciples do that which is not lawful to do - The Jews were so superstitious, concerning the observance of the Sabbath, that in their wars with Antiochus Epiphanes, and the Romans, they thought it a crime even to attempt to defend themselves on the Sabbath: when their enemies observed this, they deterred their operations to that day. It was through this, that Pompey was enabled to take Jerusalem. Dion. Cass. lib. xxxvi.

Those who know not the spirit and design of the divine law are often superstitious to inhumanity, and indulgent to impiety. An intolerant and censorious spirit in religion is one of the greatest curses a man can well fall under.
Verse 3

Have ye not read what David did - The original history is in 1Sam 21:1-6.

When he was an hungered - Here hearken to Kimchi, producing the opinion of the ancients concerning this story in these words: "Our rabbins of blessed memory say, that he gave him the shew-bread, etc. The interpretation also of the clause, Yea, though it were sanctified this day in the vessel, is this: It is a small thing to say, that it is lawful for us to eat These Loaves, taken from before the Lord, when we are hungry; for it would be lawful to eat this very loaf which is now set on, which is also sanctified in the vessel, (for the table sanctifieth), it would be lawful to eat even this, when another loaf is not present with you to give us, and we are so hunger-bitten. And a little after, There is nothing which may hinder taking care of life, beside idolatry, adultery, and murder. That is, a man, according to them, should do any thing but these in order to preserve life." See Lightfoot.

He entered into the house of God - Viz. the house of Ahimelech the priest, who dwelt at Nob, with whom the tabernacle then was, in which the Divine presence was manifested.

And did eat the shew - bread - Τους αρτους της προθεσεως - in Hebrew, לחם פנים lechem panim - bread of the presence, or faces, because this bread was to be set continually, לפני יהוה lipney Yehovah, before the face of Jehovah. See the notes on Exo 25:23, Exo 25:30. "Since part of the frankincense put in the bread was to be burnt on the altar for a memorial, Lev 24:7, and since Aaron and his sons were to eat it in the holy place, it is evident that this bread typified Christ, first presented as a sacrifice to, or in the presence of, Jehovah, and then becoming spiritual food to such as, in and through him, are spiritual priests to God. See Rev 1:6; Rev 5:10; Rev 20:6; also 1Pet 2:5." Parkhurst.
Verse 5

The priests - profane the Sabbath - Profane, i.e. put it to what might be called a common use, by slaying and offering up sacrifices, and by doing the services of the temple, as on common days, Exo 29:38; Num 28:9.
Verse 6

In this place is one greater than the temple - Does not our Lord refer here to Mal 3:1? Compare this with Heb 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, Mat 12:8, The Son of man is Lord of the Sabbath - is Institutor and Governor of it. Compare this with Gen 2:3 (note), and see the notes there.
Verse 7

I will have mercy, etc. - See this explained, Mat 9:13.

There are four ways in which positive laws may cease to oblige.

First, by the natural law of necessity.

Secondly, by a particular law, which is superior.

Thirdly, by the law of charity and mercy.

Fourthly, by the dispensation and authority of the Lawgiver.

These cases are all exemplified from Mat 12:4-8.
Verse 8

The Son of man is Lord even of the Sabbath-day - The change of the Jewish into the Christian Sabbath, called the Lord's day, Rev 1:10, shows that Christ is not only the Lord, but also the truth and completion of it. For it seems to have been by an especial providence that this change has been made and acknowledged all over the Christian world.
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