He is to present as his offering cakes of leavened bread with his thanksgiving sacrifice of fellowship.
Bring two loaves of bread from your settlements as a presentation offering, each of them made from four quarts of fine flour, baked with yeast, as firstfruits to the Lord.
You may present them to the Lord as an offering of firstfruits, but they are not to be offered on the altar as a pleasing aroma.
Offer leavened bread as a thank offering,
and loudly proclaim your freewill offerings,
for that is what you Israelites love to do!
This is the Lord’s declaration.
All of them commit adultery;
they are like an oven heated by a baker
who stops stirring the fire
from the kneading of the dough until it is leavened.
It’s like yeast that a woman took and mixed into 50 pounds of flour until it spread through the entire mixture.”
Then Jesus told them, “Watch out and beware of the yeast of the Pharisees and Sadducees.”
Why is it you don’t understand that when I told you, ‘Beware of the yeast of the Pharisees and Sadducees,’ it wasn’t about bread?”
Then He commanded them: “Watch out! Beware of the yeast of the Pharisees and the yeast of Herod.”
In these circumstances, a crowd of many thousands came together, so that they were trampling on one another. He began to say to His disciples first:“Be on your guard against the yeastof the Pharisees, which is hypocrisy.
Then they understood that He did not tell them to beware of the yeast in bread, but of the teaching of the Pharisees and Sadducees.
1 Corinthians 5:8
Therefore, let us observe the feast, not with old yeast or with the yeast of malice and evil but with the unleavened bread of sincerity and truth.
He told them another parable: “The kingdom of heaven is like yeast that a woman took and mixed into 50 pounds of flour until it spread through all of it.”
1 Corinthians 5:6
Your boasting is not good. Don’t you know that a little yeast permeates the whole batch of dough?