This is the latter part of the law of the trespass-offering: the former part, which concerned trespasses about holy things, we had in the close of the foregoing chapter; this concerns trespasses in common things. Observe here, I. The trespass supposed, Lev 6:2, Lev 6:3. Though all the instances relate to our neighbour, yet it is called a trespass against the Lord, because, though the injury be done immediately to our neighbour, yet an affront is thereby given to his Maker and our Master. He that speaks evil of his brother is said to speak evil of the law, and consequently of the Law-maker, Jam 4:11. Though the person injured be ever so mean and despicable, and every way our inferior, yet the injury reflects upon that God who has made the command of loving our neighbour second to that of loving himself. The trespasses specified are, 1. Denying a trust: If a man lie unto his neighbour in that which was delivered him to keep, or, which is worse, which was lent him for his use. If we claim that as our own which is only borrowed, left in our custody, or committed to our care, this is a trespass against the Lord, who, for the benefit of human society, will have property and truth maintained. 2. Defrauding a partner: If a man lie in fellowship, claiming a sole interest in that wherein he has but a joint-interest. 3. Disowning a manifest wrong: If a man has the front to lie in a thing taken away by violence, which ordinarily cannot be hid. 4. Deceiving in commerce, or, as some think, by false accusation; if a man have deceitfully oppressed his neighbour, as some read it, either withholding what is due or extorting what is not. 5. Detaining what is found, and denying it (Lev 6:3); if a man have found that which was lost, he must not call it his own presently, but endeavour to find out the owner, to whom it must be returned; this is doing as we would be done by: but he that lies concerning it, that falsely says he knows nothing of it, especially if he back this lie with a false oath, trespasseth against the Lord, who to every thing that is said is a witness, but in an oath he is the party appealed to, and highly affronted when he is called to witness to a lie. II. The trespass-offering appointed. 1. In the day of his trespass-offering he must make satisfaction to his brother. This must be first done if thy brother hath aught against thee: Because he hath sinned and is guilty, (Lev 6:4, Lev 6:5), that is, is convicted of his guilt by his own conscience, and is touched with remorse for it; seeing himself guilty before God, let him faithfully restore all that he has got by fraud or oppression, with a fifth part added, to make amends to the owner for the loss and trouble he had sustained in the mean time; let him account both for debt and damages. Note, Where wrong has been done restitution must be made; and till it is made to the utmost of our power, or an equivalent accepted by the person wronged, we cannot have the comfort of the forgiveness of the sin; for the keeping of what is unjustly got avows the taking, and both together make but one continued act of unrighteousness. To repent is to undo what we have done amiss, which (whatever we pretend) we cannot be said to do till we restore what has been got by it, as Zaccheus (Luk 19:8), and make satisfaction for the wrong done. 2. He must then come and offer his gift, must bring his trespass-offering to the Lord whom he had offended; and the priest must make an atonement for him, Lev 6:6, Lev 6:7. This trespass-offering could not, of itself, make satisfaction for sin, nor reconciliation between God and the sinner, but as it signified the atonement that was to be made by our Lord Jesus, when he should make his soul an offering or sin, a trespass-offering; it is the same word that is here used, Isa 53:10. The trespasses here mentioned are trespasses still against the law of Christ, which insists as much upon justice and truth as ever the law of nature or the law of Moses did; and though now we may have them pardoned without a trespass-offering, yet not without true repentance, restitution, reformation, and a humble faith in the righteousness of Christ: and, if any make the more bold with these sins because they are not now put to the expense of a trespass-offering for them, they turn the grace of God into wantonness, and so bring upon themselves a swift destruction. The Lord is the avenger of all such, Th1 4:6.

Hitherto we have had the instructions which Moses was directed to give to the people concerning the sacrifices; but here begin the instructions he was to give to the priests; he must command Aaron and his sons, Lev 6:9. The priests were rulers in the house of God, but these rulers must be ruled; and those that had the command of others must themselves be commanded. Let ministers remember that not only commissions, but commands, were given to Aaron and his sons, who must be in subjection to them. In these verses we have the law of the burnt-offering, as far as it was the peculiar care of the priests. The daily sacrifice of a lamb, which was offered morning and evening for the whole congregation, is here chiefly referred to. I. The priest must take care of the ashes of the burnt-offering, that they be decently disposed of, Lev 6:10, Lev 6:11. He must clear the altar of them every morning, and put them on the east side of the altar, which was furthest from the sanctuary; this he must do in his linen garment, which he always wore when he did any service at the altar; and then he must shift himself, and put on other garments, either such as were his common wear, or (as some think) other priestly garments less honourable, and must carry the ashes into a clean place without the camp. Now, 1. God would have this done, for the honour of his altar and the sacrifices that were burnt upon it. Even the ashes of the sacrifices must be preserved, to testify the regard God had to it; by the burnt-offering he was honoured, and therefore thus it was honoured, and therefore thus it was honoured. And some think that this care which was taken of the ashes of the sacrifice typified the burial of our Saviour; his dead body (the ashes of his sacrifice) was carefully laid up in a garden, in a new sepulchre, which was a clean place. It was also requisite that the altar should be kept as clean as might be; the fire upon it would burn the better, and it is decent in a house to have a clean fire-side. 2. God would have the priests themselves to keep it so, to teach them and us to stoop to the meanest services for the honour of God and of his altar. The priest himself must not only kindle the fire, but clean the hearth, and carry out the ashes. God's servants must think nothing below them but sin. II. The priest must take care of the fire upon the altar, that it be kept always burning. This is much insisted on here (Lev 6:9, Lev 6:12), and this express law is given: The fire shall ever be burning upon the altar, it shall never go out, Lev 6:13. We may suppose that no day passed without some extraordinary sacrifices, which were always offered between the morning and evening lamb; so that from morning to night the fire on the altar was kept up of course. But to preserve it all night unto the morning (Lev 6:9) required some care. Those that keep good houses never let their kitchen fire go out; therefore God would thus give an instance of his good house-keeping. The first fire upon the altar came from heaven (Lev 9:24), so that by keeping that up continually with a constant supply of fuel all their sacrifices throughout all their generations might be said to be consumed with that fire from heaven, in token of God's acceptance. If, through carelessness, they should ever let it go out, they could not expect to have it so kindled again. Accordingly the Jews tell us that the fire never did go out upon the altar, till the captivity in Babylon. This is referred to Isa 31:9, where God is said to have his fire in Zion, and his furnace in Jerusalem. By this law we are taught to keep up in our minds a constant disposition to all acts of piety and devotion, an habitual affection to divine things, so as to be always ready to every good word and work. We must not only not quench the Spirit, but we must stir up the gift that is in us. Though we be not always sacrificing, yet we must keep the fire of holy love always burning; and thus we must pray always.