7918. 'And you shall take a bunch of hyssop' means the outward means by which purification is effected. This is clear from the meaning of 'hyssop' as outward truth, the means by which purification is effected, dealt with below. It says that they were to take a bunch of hyssop because 'a bunch' is used to refer to truths and the arrangement of them, 5530, 5881, 7408. The reason why 'hyssop' means outward truth, the means of purification, is that all spiritual purification is effected by means of truths. For the earthly and worldly types of love from which a person has to be purified are not recognized except by means of truths. When these truths are instilled by the Lord a horror of those types of love, as of things unclean and damnable, is also at the same time instilled. The effect this horror has is that when something similar enters the person's thinking the feeling of horror returns, producing a loathing of those types of love. That is how a person is purified by truths, which serve as outward means. This was the reason why it was laid down that knives or 'small swords' made of flint should be used when circumcision took place, 'small swords' or knives made of flint being the truths of faith by means of which purification is effected, see 2799, 7044, and 'circumcision purification from filthy types of love, 2039, 2632, 3412, 3413, 4461, 7045.

[2] Since 'hyssop' had that meaning it was used in cleansings, which in the internal sense meant purifications from falsities and evils, as in the cleansing of leprosy in Moses,

The priest shall take for cleansing a leper two living clean birds, and cedarwood, and scarlet, and hyssop; and he shall dip them in the blood of the slaughtered bird, and sprinkle over the one to be cleansed. Leviticus 14:4-7.

Hyssop was likewise used in the cleansing of the house, if leprosy was in it, Leviticus 14:49-51. The preparation of the water of separation by which cleansings were accomplished also involved the use of cedarwood and hyssop, Numbers 19:6, 18. 'Cedarwood' meant inward spiritual truth, whereas 'hyssop' meant outward [spiritual] truth. Thus 'cedarwood' is the means effecting purification more internally, 'hyssop' the means effecting it more externally. That 'hyssop' is a means of purification is plainly evident in David,

You will purge me with hyssop and I shall become clean; You will wash me and I shall be made whiter than snow. Psalms 51:7.

'Purging with hyssop and becoming clean' stands for external purification, 'washing and being made whiter than snow' for internal purification, 'snow' and 'whiteness' having reference to truth, 3301, 3993, 4007, 5319. 'Hyssop' means a very low kind of truth and 'cedar' a superior kind of truth, as is evident from the following words in the first Book of Kings, Solomon spoke about trees, from the cedar which is in Lebanon even to the hyssop which comes out of the wall. 1 Kings 4:33.

Here 'the cedar' stands for the internal kind of truth and 'hyssop' for the external kind of truth that belong to intelligence.

7045. 'And cut off the foreskin of her son' means the removal of filthy kinds of love, as a result of which the internal is laid bare. This is clear from the meaning of 'cutting off' as removing; from the meaning of 'the foreskin' as earthly and bodily love which defiles spiritual and celestial love, dealt with in 3412, 4462; and from the meaning of 'son' as the truth which the representative Church possesses. For the meaning of 'son' as truth, see 489, 491, 533, 1147, 2623, 3773; and the reason why the truth which that Church possesses is meant here is that 'Zipporah' represents that Church and calls him 'her son'. She also uses him to show the actual nature of that nation and consequently the actual nature of its worship. 'The foreskin' means filthy kinds of love for the following reason: The loins and genital organs correspond to conjugial love, 5050-5062; and since they correspond to conjugial love they also correspond to every kind of celestial and spiritual love, 686, 4277, 4280, 5054. The foreskin therefore corresponds to the kinds of love that are very much external, which are called bodily and earthly loves. If these loves are devoid of the internal kinds of love that are called spiritual and celestial loves, they are filthy, as they were with that nation which had externals without an internal. The words 'without an internal' are used, and by this is meant no acknowledgement of truth and no affection for good, thus no faith and no charity; for these are qualities that belong to the internal man and from them spring ways of exercising charity, which are external forms of good. The Lord speaks of that internal, when it is devoid of faith and charity and yet full of evils and falsities, as that which is 'empty', in Matthew 12:43-45. This is what 'external without an internal' serves to describe. So then 'the foreskin' means the kinds of love that are very much external; therefore when those kinds of love have been removed, meant by Zipporah's cutting off the foreskin, the actual nature of them is seen, and the internal is accordingly laid bare.