4922. 'And bound on his hand a twice-dyed thread' means that a sign was placed on it, namely on that power - 'twice-dyed' meaning good. This is clear from the meaning of 'binding on the hand' as placing a sign on power, for 'the hand' means power, 4920; and from the meaning of 'twice-dyed' as good, in particular spiritual good. The reason 'twice-dyed' means spiritual good is that this expression describes a shade of scarlet, and in the next life whenever one sees scarlet spiritual good is meant, which is the good of charity towards the neighbour. For all colours clearly visible in the next life mean something connected with good and truth since they are products of the light of heaven, which essentially is wisdom and intelligence flowing from the Lord's Divine. The variegations or modifications of that light are consequently variegations and so to speak modifications of wisdom and intelligence, and therefore of good and truth. For details about the light in heaven flowing from the Lord's Divine wisdom and intelligence, where the Lord is seen as the Sun, see 1053, 1521-1533, 1619-1632, 2776, 3138, 3167, 3190, 3195, 3222, 3223, 3225, 3337, 3339, 3340, 3485, 3636, 3643, 3862, 3993, 4180, 4214, 4302, 4405, 4408, 4413, 4415, 4523-4533; and for details about colours having their origin in that light and about their being variegations and modifications of that light, and therefore of intelligence and wisdom, 1042, 1043, 1053, 1624, 3993, 4530, 4677, 4742.
 As regards 'twice-dyed' meaning spiritual good, this is evident from places in the Word where this expression is used, as in Jeremiah,
If therefore you have been laid waste, what will you do? If you clothe yourself in twice-dyed and deck yourself with ornaments of gold, in vain will you make yourself beautiful; your lovers will abhor you. Jeremiah 4:30.
This refers to Judah. 'Clothing yourself in twice-dyed' stands for spiritual good, 'decking yourself with ornaments of gold' for celestial good. In 2 Samuel,
David lamented over Saul and over Jonathan, and wrote it down that they teach the children of Judah the bow. Daughters of Israel, weep over Saul who clothed you in twice-dyed delicately, 1 and placed an ornament of gold on your apparel. 2 Samuel 1:17-18, 24.
Here 'teaching the bow' stands for teaching the doctrine of love and charity, for 'the bow' means that doctrine. 'Clothing in twice-dyed' stands for spiritual good, as previously, and 'placing an ornament of gold on one's apparel' for celestial good.
 Such being the meaning of 'twice-dyed', instructions were also given to use twice-dyed scarlet on the curtains of the Dwelling-place, the veil, the covering for the door of the tent, the covering to the gate of the court, the table of the Presence when they were about to set out, Aaron's sacred vestments such as the ephod, the breastplate of judgement, and the fringes of the robe of the ephod:
The curtains of the Dwelling-place
You shall make for the Dwelling-place ten curtains - fine-twined linen, and violet and purple and twice-dyed scarlet. Exodus 26:1.
You shall make a veil of violet and purple, and of twice-dyed scarlet, and of fine-twined linen. Exodus 26:31.
The covering for the door of the tent
You shall make a covering for the door of the tent, of violet and purple and twice-dyed scarlet, and of fine-twined linen. Exodus 26:36.
 The covering to the gate of the court
For the gate of the court you shall make a covering of violet and purple and twice-dyed scarlet, and fine-twined linen, the work of an embroiderer. Exodus 27:16.
The table of the Presence when they were about to set out
When the camp sets out they shall spread over the table of the Presence a cloth of twice-dyed scarlet, and shall cover this with a covering of badger skin. Numbers 4:8.
You shall make an ephod out of gold, violet and purple, and twice-dyed scarlet, fine-twined linen, the work of a craftsman; and the girdle similarly. Exodus 28:5-6, 8; 39:2-3.
The breastplate of judgement
You shall make the breastplate of judgement, the work of a craftsman, like the work of the ephod, out of gold, violet, and purple. and twice-dyed scarlet, and fine-twined linen. Exodus 28:15.
The fringes of the robe of the ephod
Pomegranates of violet, and purple, and twice-dyed scarlet. Exodus 28:33.
 It was because the Tent of Meeting with the Ark in it represented heaven that the colours mentioned in these places were required. They meant in their order celestial and spiritual things, as follows: 'Violet and purple' meant celestial kinds of good and truth, 'twice-dyed scarlet and fine-twined linen' spiritual kinds of good and truth. Anyone believing that the Word is holy can recognize that each has a specific meaning, and anyone believing that the Word is holy for the reason that it has been sent down from the Lord by way of heaven can recognize that the celestial and spiritual things belonging to His kingdom are meant. Similar instructions were given, in cleansings from leprosy, to use 'cedarwood, scarlet, and hyssop', Leviticus 14:4, 6, 52; and to cast 'cedarwood and hyssop and twice-dyed of purple' on to the fire in which the red heifer was being burned, from which the water of separation was prepared, Numbers 19:6.
(Odkazy: Numbers 19:9)
 The profanation of good and truth is described by similar words in John,
I saw a woman sitting on a scarlet beast, full of blasphemous names. It had seven heads and ten horns. The woman was clothed in purple and scarlet. and covered 2 with gold and precious stones and pearls. holding in her hand a golden cup, full of abominations and the uncleanness of whoredom. Revelation 17:3-4.
And after this,
Woe, woe, the great city, you that were clothed in fine linen and purple and scarlet, and covered' with gold and precious stones and pearls. Revelation 18:16.
This refers to 'Babel' by which the profanation of good is meant, 1182, 1283, 1295, 1304, 1306-1308, 1321, 1322, 1326, in this case the profanation both of good and of truth, which is 'Babylonian'. Among the Prophets in the Old Testament 'Babel' describes the profanation of good and 'Chaldea' the profanation of truth.
(Odkazy: Arcana Coelestia 1321-1322)
 In the contrary sense 'scarlet' means the evil that is the contrary of spiritual good, as in Isaiah,
Though your sins are like scarlet, they will be white as snow. Though they are red as crimson, 3 they will be as wool. Isaiah 1:18.
The reason 'scarlet' means this evil is that 'blood', likewise, because of its red colour, in the genuine sense means spiritual good or charity towards the neighbour, and in the contrary sense violence done to charity, 374, 1005.
(Odkazy: Genesis 38:28)