1 Corinthians 5:8

Therefore let us keep our festival, not with the leaven of former days, nor with the leaven of vice and wickedness, but with the unleavened bread of sincerity and truth.

1 Corinthians 9:13-15

Do not you know that those who do the work of the Temple live on what comes from the Temple, and that those who serve at the altar share the offerings with the altar?

Treasury of Scripture Knowledge

Summary

And the remainder thereof shall Aaron and his sons eat: with unleavened bread shall it be eaten in the holy place; in the court of the tabernacle of the congregation they shall eat it.

The remainder

Unleavened

Bible References

The remainder

1 Corinthians 9:13
Do not you know that those who do the work of the Temple live on what comes from the Temple, and that those who serve at the altar share the offerings with the altar?

Unleavened

1 Corinthians 5:8
Therefore let us keep our festival, not with the leaven of former days, nor with the leaven of vice and wickedness, but with the unleavened bread of sincerity and truth.