'The first resurrection,' mentioned in Revelation 20:5, 6, does not mean a first resurrection, but the essence and primary part of resurrection, which is salvation and eternal life. There is only one resurrection to life. A second does not happen, and is not mentioned anywhere in the Bible.

(References: Apocalypse Explained 6; Apocalypse Revealed 851; Revelation 20:5-6)

708. And the moon under her feet.- That this signifies faith with those who are natural and in charity, is plain from the signification of the moon, as denoting faith in which there is charity, of which we shall speak presently; and from the signification of feet as meaning things natural, of which see above (n. 69, 600:1, 632), - here, therefore, those who are natural, because it is said of the woman, who signifies the church, and the sun with which she was encompassed signifies love to the Lord from the Lord and love towards the neighbour, as shown in the preceding article. The woman encompassed with the sun therefore signifies the church with those who are celestial and thence spiritual, and the moon under her feet signifies the church with those who are natural and sensual, and at the same time in the faith of charity; for the goods and thus the truths of heaven and the church have an orderly succession, like the head, the body, and the feet in man. In the head of the Grand Man (Maximus Homo), which is heaven, are those who are in love to the Lord from the Lord, and these are called celestial; but in the body, from the breast even to the loins of that Grand Man, which is heaven, are those who are in love towards the neighbour, and they are called spiritual. But in the feet of the Grand Man, which is heaven, are those who are in the faith of charity obscurely, and these are called natural.

[2] But in order that this may be clearly apprehended, it must be understood that there are two kingdoms into which the heavens are divided, one called the celestial, and the other the spiritual; also that there are three heavens, the highest called the celestial, the middle called the spiritual, and the lowest the celestial-spiritual-natural.

But besides these divisions of the heavens, there is also the further distinction that there are those who receive light, that is, intelligence, from the Lord as a sun, and those who receive light and intelligence from the Lord as a moon. Those who receive the light of intelligence from the Lord as a sun, are those in whom the Intellectual and its Rational have been opened, and who have thence thought rationally concerning things that should be believed from a spiritual affection for truth. But those who receive light from the Lord as a moon, are those in whom the Intellectual and Rational have not been interiorly opened, but only the natural, and who in consequence have thought from the memory about what should be believed; and to think of those things from the memory is to think only about such things as have been heard from a master or preacher, which are called truths, and are also believed to be truths, although they may be falsities, for they are not seen from any further ground. If such had been in the faith of charity during their abode in the world, they, in the heavens, are under the Lord as a moon, for the light (lumen), which is the source of their intelligence, is like the light (lumen) of the moon at night, while the light (lux), which is the source of the intelligence of those who are in the heavens under the Lord as a sun, is like the light (lux) of day. What the difference is can be seen from the difference between the light of the sun in the day and that of the moon at night. The difference also is such that those who are under the Lord as a moon can see nothing in the light of those who are under the Lord as a sun, because their light (lux) is not genuine, but reflected light, which is capable of receiving falsities as well as truths, provided good appears in the falsities. Since all those who are in the heavens under the Lord as a moon are natural and sensual, and have nothing in common with those in the heavens who are under the Lord as a sun, and since they also are in falsities, in which, however, there is good, therefore the moon was seen under the feet of the woman, which means the faith of those who are natural.

[3] So far concerning the faith of those in heaven who are under the Lord as a moon; we will also speak briefly of their affection, from which faith derives its life. Their desire to know truth and do good, is, like themselves, natural, deriving more or less from the glory of learning, and from reputation, which looks to honours and gain as rewards, differing in this from the spiritual desire to know truth and do good, which those have who in heaven are under the Lord as a sun; with these this affection is so separated from natural affection, that the latter is under the feet. This also is the reason why the moon, which signifies not only faith, but also its affection, was here seen under the feet. But a more complete idea of these things may be obtained from what is said and shown in Heaven and Hell under the following heads: "Heaven is divided into two kingdoms" (n. 20-28); "The Sun and Moon in Heaven," "Light and Heat in the Heavens" (n. 116-140); "The Correspondence of Heaven with all things of Man" (n. 87-102); also in the Doctrine of the New Jerusalem, concerning those who are in falsities from good (n. 21). That the sun signifies the Lord as to Divine Love, and thence love to the Lord from the Lord, and that the moon signifies the truth of faith, may be seen above (n. 401); moreover, concerning the heavens which are under the Lord as a sun, and those under the Lord as a moon, see also above (n. 411e, 422:3, 527). To this it may be added, that those heavens which are under the Lord as a moon are also three, a higher, a middle, and a lower, or, what is the same, an interior, a middle, and an exterior; still all in these heavens are natural. The reason why they are interior, middle, and exterior, is because the Natural is divided into three degrees in the same manner as the Spiritual; the exterior Natural communicates with the world, the interior with heaven, while the middle is conjunctive. Nevertheless, those who are in the heavens under the Lord as a moon cannot enter into the heavens that are under the Lord as a sun, because their interior sight or understanding is formed to receive the lunar light there, and not to receive the solar light. They are, comparatively, not unlike those birds that see in the night and not in the day time, consequently when they come into the solar light, which those have who are under the Lord as a sun, their sight is darkened. Those who are in these heavens are such as were in charity according to their religion, or according to their faith; but those who are natural, and not in the faith of charity, are in the hells under those heavens. From these things it is evident that the moon here means faith with those who are natural and in charity; and that the moon was seen under the feet, because those who are in the heavens under the Lord as a moon have nothing in common with those who are in the heavens under the Lord as a sun, even to the extent of not being able to ascend up to them.