And when ye will offer a sacrifice of thanksgiving unto the Lord,.... Which was a sort of peace offering, distinct from freewill offerings and vows before spoken of:

offer it at your own will; just what they pleased, whether a bullock, a sheep, or a goat, and whether a male or female; these were left to their own option, or for acceptation to you, as the Targum of Jonathan, and so Jarchi; that is, it was right in them, and they ought to be careful to offer it in such manner, that it might be acceptable to God, by observing the rules given concerning it, particularly what follows.

And when ye will offer a sacrifice of thanksgiving unto the LORD, offer it at your own will.

22:1-33 Laws concerning the priests and sacrifices. - In this chapter we have divers laws concerning the priests and sacrifices, all for preserving the honour of the sanctuary. Let us recollect with gratitude that our great High Priest cannot be hindered by any thing from the discharge of his office. Let us also remember, that the Lord requires us to reverence his name, his truths, his ordinances, and commandments. Let us beware of hypocrisy, and examine ourselves concerning our sinful defilements, seeking to be purified from them in the blood of Christ, and by his sanctifying Spirit. Whoever attempts to expiate his own sin, or draws near in the pride of self-righteousness, puts as great an affront on Christ, as he who comes to the Lord's table from the gratification of sinful lusts. Nor can the minister who loves the souls of the people, suffer them to continue in this dangerous delusion. He must call upon them, not only to repent of their sins, and forsake them; but to put their whole trust in the atonement of Christ, by faith in his name, for pardon and acceptance with God; thus only will the Lord make them holy, as his own people.