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 pleaseth you, O ye children of Israel, saith the Lord GOD.
Leviticus 23:17
Ye shall bring out of your habitations two wave-loaves of two tenth-parts: they shall be of fine flour, they shall be baked with leaven, they are the first-fruits to the LORD.
Matthew 13:33
Another parable he spoke to them; The kingdom of heaven is like 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 received with thanksgiving: