Defile my sanctuary - i. e. pollute the people as identified with their sanctuary.

And I will set my face against that man,.... Express resentment, anger, wrath, and indignation at him, see Psalm 34:16,

and will cut him off from among his people: that is, supposing him to have been guilty of the above horrid crime, and there being not sufficient evidence given of it by witnesses, or the magistrates negligent in doing their duty; and the matter being known to God the omniscient, he, according this declaration, would deal with him himself, and cut him off out of the land of the living, from among his relations, friends, and neighbours, by his own immediate hand; otherwise the law before provided a penalty, which is death by stoning, whereby he would be effectually cut off from his people, and deprived of all natural, civil, and religious privileges in this life, and sent into everlasting punishment in another, unless forgiving grace should be vouchsafed:

because he hath given of his seed to Molech; an iniquity to be punished by the judge, and deserving of everlasting wrath and destruction:

to defile my sanctuary; not by doing this horrid action in it, but by coming into it, having done it; or by offering sacrifice in another place than where God had commanded, as well as such a sacrifice as was abominable to him, sacrifice being to be offered nowhere but on the altar of the Lord in the sanctuary. Jarchi interprets this of the congregation of Israel, which was sanctified to the Lord, in the midst of which this wickedness was committed, and with which they were polluted:

and to profane my holy name: by sacrificing to an idol, when sacrifice should be offered to God; and such a sacrifice as would cause the name of God, and his holy laws, and true religion, to be blasphemed and evil, spoken of among the Gentiles, Romans 2:23.

By this punishment the nation only carried out the will of Jehovah; for He would cut off such a man (see at Leviticus 17:10 and Leviticus 18:21) for having defiled the sanctuary of Jehovah and desecrated the name of Jehovah, not because he had brought the sacrifice to Moloch into the sanctuary of Jehovah, as Movers supposes, but in the same sense in which all the sins of Israel defiled the sanctuary in their midst (Leviticus 15:31; Leviticus 16:16).

And I will {b} set my face against that man, and will cut him off from among his people; because he hath given of his seed unto Molech, to defile my sanctuary, and to profane my holy name.

(b) Read Le 17:10,18:21.

20:3 I will set my face against that man - Deal with him as an enemy, and make him a monument of my justice. To defile my sanctuary - Because the sanctuary was defiled by gross abominations committed in that city or land where God's sanctuary was: or because by these actions they declared to all men that they esteemed the sanctuary and service of God abominable and vile, by preferring such odious idolatry before it. And to profane my name - Partly by despising it themselves, partly by disgracing it to others, and giving them occasion to blaspheme it, and to abhor the true religion.

20:1-9 Are we shocked at the unnatural cruelty of the ancient idolaters in sacrificing their children? We may justly be so. But are there not very many parents, who, by bad teaching and wicked examples, and by the mysteries of iniquity which they show their children, devote them to the service of Satan, and forward their everlasting ruin, in a manner even more to be lamented? What an account must such parents render to God, and what a meeting will they have with their children at the day of judgment! On the other hand, let children remember that he who cursed father or mother was surely put to death. This law Christ confirmed. Laws which were made before are repeated, and penalties annexed to them. If men will not avoid evil practices, because the law has made these practices sin, and it is right that we go on that principle, surely they should avoid them when the law has made them death, from a principle of self-preservation. In the midst of these laws comes in a general charge, Sanctify yourselves, and be ye holy. It is the Lord that sanctifies, and his work will be done, though it be difficult. Yet his grace is so far from doing away our endeavours, that it strongly encourages them. Work out your salvation, for it is God that worketh in you.