Leviticus 2:11

No meat-offering - shall be made with leaven - See the reason of this prohibition in the note on Exodus 12:8 (note).

Nor any honey - Because it was apt to produce acidity, as some think, when wrought up with flour paste; or rather because it was apt to gripe and prove purgative. On this latter account the College of Physicians have totally left it out of all medicinal preparations. This effect which it has in most constitutions was a sufficient reason why it should be prohibited here, as a principal part of all these offerings was used by the priests as a part of their ordinary diet; and these offerings, being those of the poorer sort, were in greater abundance than most others. On this account, the griping, and purgative quality of the honey must render it extremely improper. As leaven was forbidden because producing fermentation, it was considered a species of corruption, and was therefore used to signify hypocrisy, malice, etc., which corrupt the soul; it is possible that honey might have had a moral reference, also, and have signified, as St. Jerome thought, carnal pleasures and sensual gratifications. Some suppose that the honey mentioned here was a sort of saccharine matter extracted from dates. Leaven and honey might be offered with the first-fruits, as we learn from the next verse; but they were forbidden to be burnt on the altar,

As for the oblation of the firstfruits - Rather, As an oblation of firstfruits. The words refer to the leaven and honey mentioned in Leviticus 2:11 which might be offered among the firstfruits and tithes (Deuteronomy 26:2, Deuteronomy 26:12; compare 2 Chronicles 31:5). Honey, being used to produce fermentation, and leaven (or, a small piece of fermented dough) were excluded because fermentation was an apt symbol of the working of corruption in the human heart.

2:11 No leaven — Namely, in that which is offered of free-will; for in other offerings it might be used, Leviticus 7:13; 23:17. This was forbidden, partly to mind them of their deliverance out of Egypt, when they were forced thro' haste to bring away their meal or dough (which was the matter of this oblation) unleavened; partly to signify what Christ would be, and what they should be, pure and free from all error in the faith and worship of God, and from all hypocrisy, and malice or wickedness, all which are signified by leaven.

Nor any honey — Either, 1. because it hath the same effect with leaven in paste or dough, making it sour, and swelling. Or, 2. in opposition to the sacrifices of the Gentiles, in which the use of honey was most frequent. Or, 3. to teach us, that God's worship is not to be governed by men's fancies and appetites but by God's will.