'Produce' denotes fruit derived from the good of charity, and truth of faith.

(Odkazy: Arcana Coelestia 6108, 6155, Genesis 47:24)

10678. 'You shall not offer the blood of My sacrifice with anything made from yeast' means that worship of the Lord arising from the Church's truths must not be mingled together with falsities arising from evil. This is clear from the explanation of those words in 9298.