You shall bring out of your dwellings two wave loaves of two-tenths of an ephah: they shall be of fine flour; they shall be baked with leaven; they are the first fruits unto the LORD.
And offer a sacrifice of thanksgiving with leaven, and proclaim and publish the free offerings: for this you love, O you children of Israel, says the Lord GOD.
Another parable spoke he unto them; The kingdom of heaven is like unto leaven, which a woman took, and hid in three measures of meal, till the whole was leavened.