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 from that which is leavened, and cry out; call out the voluntary offerings! For so you love to do, O sons of Israel, says the Lord Jehovah.
Leviticus 23:17
You shall bring out of your homes two wave loaves of two-tenth parts. They shall be of fine flour. They shall be baked with leaven, firstfruits to Jehovah.
Matthew 13:33
He spoke another parable to them: The kingdom of Heaven is like leaven, which a woman took and hid in three measures of meal until the whole was leavened.
1 Timothy 4:4
For every creation of God is good, and nothing to be refused if it is received with thanksgiving.