Leviticus 7:13
Besides the cakes, he shall offer for his offering leavened bread with the sacrifice of thanksgiving of his peace offerings.
Amos 4:5
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.
Leviticus 23:17
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.
Matthew 13:33
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.
1 Timothy 4:4
For every creature of God is good, and nothing to be refused, if it be received with thanksgiving: