Arcana Coelestia#10678
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.
Exodus第34章:12
12
Be careful, lest you make a covenant with the inhabitants of the land where you are going, lest it be for a snare in the midst of you: