The answer is: Yeast and honey

Lev 2:11 - Yeast and honey were prohibited in grain offerings to symbolize purity and absence of corruption.

In Leviticus 2:11, we find an interesting rule regarding grain offerings: no yeast or honey was to be included. This regulation goes beyond mere culinary matters; it speaks to the ritual purity required in offerings made to the Divine.

Yeast in particular is often seen as a symbol of corruption or uncleanness. In ancient times, yeast was linked to fermentation, which caused it to symbolize change and decay. This could serve as a metaphor for life's tempests, which can lead us away from purity and integrity. Consequently, excluding yeast highlights a significant desire for wholesomeness in one's worship—both literally and spiritually.

Honey, treasured for its sweetness, might seem like an ideal offering, but it too comes with connotations. Honey spoils more readily than some other offerings, representing things that won't stand the test of time. It's suggestive of fleeting pleasures, whereas the Divine is called to be eternal and imperishable.

This principle echoes through scripture, as you’ll find in Matthew 13:33, where yeast is compared to the Kingdom of Heaven—a reminder of how small things can make a big impact, for better or worse. The choice to omit yeast and honey invites us to explore our inner selves and encourage offerings of a pure heart, emphasizing intent over mere ingredient. So next time you admire a loaf of bread rising or come across sweet treats, think about their deeper meanings in traditions of worship and ethics!