9298. 'You shall not sacrifice the blood of My sacrifice with anything made with 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 meaning of 'sacrificing' and 'sacrifice' as worship of the Lord, dealt with in 922, 923, 2180, 2805, 2807, 2830, 3519, 6905, 8680, 8936; from the meaning of 'something made with yeast' as something falsified and falsity arising from evil, dealt with in 2342, 7906, 8051, 8058; and from the meaning of 'blood' as truth derived from good, thus the Church's truth, dealt with in 4735, 6978, 7317, 7326, 7846, 7850, 7877, 9127. From these meanings it is evident that 'you shall not sacrifice the blood of My sacrifice with anything made with yeast' means that worship of the Lord arising from the Church's truths must not be mingled together with falsities arising from evil. What falsity arising from evil and falsity not arising from evil are, see 1679, 2408, 4729, 6359, 7272, 8298, 9258.

[2] The reason why truths derived from good, which are the Church's truths, must not be mingled together with falsities arising from evil is that they are in total disagreement. They are opposites, which causes them to clash, as a result of which either good perishes or evil is put to flight; for good comes from heaven, that is, from the Lord by way of heaven, and evil from hell. Truths may, it is true, exist with the evil, and also falsities with the good; but truths present with the evil are not mingled together with falsities arising from evil present with them as long as they reside solely in the memory, serving as the means to evil. As long as this is so the truths are devoid of life. But if the truths are falsified to lend support to evil, which is also brought about by perverse interpretation, they are mingled together. This leads to the profanation of truth, the nature of which, see 1008, 1010, 1059, 1327, 1328, 2051, 2426, 3398, 3399, 3402, 3489, 4601, 6348, 6595, 6959, 6963, 6971, 8394, 8943, 9188.

[3] The fact that accompanying a sacrifice with something made with yeast was forbidden is evident from the following law regarding a minchah, which was burned on the altar together with a sacrifice, the words of that law in Moses being,

Every minchah which you bring to Jehovah shall be made without yeast; no yeast nor any honey shall be used along with the fire-offering you burn to Jehovah. Leviticus 2:11.

From all that has been said it is clear that the profanation of truth is meant by this law. It also explains why the words 'the blood of [My] sacrifice' are used and not simply 'the sacrifice'; for 'the blood' is truth derived from good.

2342. 'And he baked unleavened bread' means purification. This is clear from the meaning of 'unleavened' or without yeast. In the Word 'bread' means in general every celestial and spiritual food, and so in general everything celestial and spiritual, see 276, 680, 1798, 2165, 2177. The need for the latter to be free of all impurities or unholiness was represented by 'unleavened bread'; for 'yeast' means the evil and falsity by means of which celestial and spiritual things are rendered impure and profane. On account of this representation those who belonged to the representative Church were forbidden in sacrifices to offer any bread or minchah other than bread without yeast, that is, unleavened, as is clear in Moses,

Every minchah which you bring to Jehovah shall be made without yeast. Leviticus 2:11. In the same author,

You shall not sacrifice the blood of My sacrifice with that made with yeast. Exodus 23:18; 34:25.

[2] They were also forbidden therefore to eat any other bread during the seven days of the Passover than bread without yeast, that is, which was unleavened. This prohibition occurs in the following verses in Moses,

For seven days you shall eat unleavened bread; even on the first day you shall remove yeast from your houses, for anyone eating that made with yeast, that soul shall be cut off from Israel, from the first day until the seventh. In the first [month], on the fourteenth day of the month, in the evening, you shall eat unleavened bread until the twenty-first day of the month, in the evening. For seven days no yeast shall be found in your houses, for anyone eating that made with yeast, that soul shall be cut off from the congregation of Israel, whether a settler or one born in the land. Exodus 12:15, 19-20.

The same prohibition appears in other places as well, such as Exodus 13:6-7; 23:15; 34:18; Deuteronomy 16:3-4. Consequently the Passover is called the Feast of Unleavened Bread, Leviticus 23:6; Numbers 28:16-17; Matthew 26:17; Luke 22:1, 7.

[3] That the Passover represented the glorification of the Lord and so the conjunction of the Divine with the human race will in the Lord's Divine mercy be shown elsewhere. And because the conjunction of the Lord with the human race is effected by means of love and charity, and by means of the faith deriving from these, celestial and spiritual things were represented by the unleavened bread which they were to eat each day during the Passover. Consequently to prevent the defilement of those things by anything unholy they were strictly forbidden to eat anything made with yeast, so strictly that any who did so were to be cut off; for those who profane celestial and spiritual things inevitably perish. Anyone may see that but for this arcanum within it that observance, together with so harsh a penalty, would never have been introduced.

[4] Everything that was commanded in that Church represented some arcanum, even the actual cooking, as with every instruction which the children of Israel carried out when they were leaving Egypt, namely that they were to eat that night flesh roasted by fire, and unleavened bread on bitter herbs; they were not to eat it raw or cooked in water; the head had to be on its legs; they were to let none of it remain until the morning; they were to burn what was left over with fire, Exodus 12:8-10. Every detail of these instructions was representative - eating it at night; flesh roasted by fire; unleavened bread on bitter herbs; the head on the legs; not raw; not cooked in water; not leaving any until the morning; and burning what was left with fire. But the arcana represented are in no way apparent unless they are disclosed by means of the internal sense. That sense alone shows that all these details are Divine.

[5] Something similar was done in the ritual for the taking of a Nazirite vow. The priest was to take the cooked shoulder of the ram, and one unleavened cake from the basket, and one unleavened wafer, and he was to place them on the palms of the Nazirite after he had shaved his consecrated head, Numbers 6:19. Anyone who does not know that a Nazirite represented the celestial man himself does not know either that every detail of these instructions embodies celestial things, and so arcana, which are not apparent in the letter, namely the instructions to take the cooked shoulder of a ram, an unleavened cake, an unleavened wafer, and to shave off his hair. This also shows what kind of opinion regarding the Word can be gained by people who do not believe in the existence of an internal sense, for without the internal sense such details are of no consequence at all. But when the ceremonial or ritualistic element has been stripped away everything becomes Divine and holy. Everything else has a deeper meaning, as does 'unleavened bread' which means the holiness of love, or what is most holy, as it is also called in Moses,

The unleavened bread that was left over was to be eaten by Aaron and his sons in a holy place, for it was most holy. Leviticus 6:16-17.

'Unleavened bread' therefore means pure love, and 'the baking of that which is unleavened' purification.