Know this ........
Peace Offering
Leviticus 7
(13) With the sacrifice of his peace offerings for thanksgiving he shall bring his offering with loaves of leavened bread.
Feast of Firstfruits
Leviticus 23
(17) You shall bring from your dwelling places two loaves of bread to be waved, made of two tenths of an ephah. They shall be of fine flour, and they shall be baked with leaven, as firstfruits to the LORD.
Thank you for those. And thank you for asking.
And if you allow, I can explain, since I asked the Lord about those too.
When one brings their firstfruits to Him, they are still a babe in the scripture, and in their understanding,
and so their offering still contains leaven, and even honey, because of ignorance.
Yet God, knowing their heart, and their sincerity, still accepts them (not their leavened offering),
and He corrects them, that they may bring righteous offerings in the future.
And this is actually how I know one does not have to be perfect to be justified in the law, as some say,
but they only need a sincere and honest heart and a desire to do it.
And then the Lord teaches them how to keep it perfectly.
Speaking from experience here,
my first fruits (first attempts) at making offerings to God would be totally unacceptable to Him if I brought them now.
Yet He gladly accepted them at that time.
No meat offering, which ye shall bring unto the Lord, shall be made with leaven:
for ye shall burn no leaven, nor any honey, in any offering of the Lord made by fire.
As for the oblation of the firstfruits, ye shall offer them unto the Lord: but they shall not be burnt on the altar for a sweet savour.
Leviticus 2:11-12
And He shall sit as a refiner and purifier of silver:
and He shall purify the sons of Levi, and purge them as gold and silver,
that they may offer unto the Lord an offering in righteousness.
Then shall the offering of Judah and Jerusalem be pleasant unto the Lord,
as in the days of old,
and as in former years.
Malachi 3:3-4
The Kingdom
Matthew 13
(33) He told them another parable. “The kingdom of heaven is like leaven that a woman took and hid in three measures of flour, till it was all leavened.”
And this is using the word leaven in a whole different context.
The Lord is not talking about doctrine here, but of God's kingdom,
likening it to the rising of a loaf of bread.
To me it is saying, getting established in God's kingdom takes time, and we have to grow in faith and understanding.
Another parable put He forth unto them, saying,
The kingdom of heaven is like to a grain of mustard seed, which a man took, and sowed in his field:
Which indeed is the least of all seeds: but when it is grown, it is the greatest among herbs, and becometh a tree,
so that the birds of the air come and lodge in the branches thereof.
Matthew 13:31-32