37. As for the statement that 'the lights will be for signs, and for set times, and for days, and for years', this contains more arcana than can be presented at this point, though no arcanum at all is visible in the sense of the letter. For now only this can be said: Change in spiritual and celestial things takes place both on general and on particular scales, and is comparable to changes that take place through the day and through the year. Changes through the day are from morning to midday, from then on to evening, and through the night to the morning. Changes in the year similar, from spring to summer, from then on to autumn, and through winter to spring. These bring changes in temperature and amount of daylight, and so in the fertility of the earth. Compared to such changes are the changes that take place in spiritual and celestial things. Life without changes and variations would lead to sameness, and so no life at all. Good and truth would not be recognized and identified, let alone perceived. In the Prophets such changes are called 'ordinances', as in Jeremiah,

[Thus] said Jehovah who gives the sun for light by day and the ordinances of the moon and of the stars for light by night, These ordinances will not depart from before Me. Jeremiah 31:35-36.

And in the same prophet,

Thus said Jehovah, If I have not established My covenant of day and night, the ordinances of heaven and earth . . . Jeremiah 33:25.

But these things will in the Lord's Divine mercy be dealt with at Genesis 8:12.

2776. 'Offer him as a burnt offering' means that He was to sanctify Himself to the Divine. This is clear from the representation of 'a burnt offering' among the Hebrew nation, and in the Jewish Church, as the holiest act of their worship. There were burnt offerings and there were sacrifices, and as regards what these represented, see 922, 923, 1823, 2180. Sanctifications were effected by means of burnt offerings and sacrifices, and that is why in this verse 'offering a burnt offering' means being sanctified to the Divine. For the Lord sanctified Himself to the Divine, that is, He united the Human to the Divine by means of the conflicts brought about by temptations, and by means of the victories in these, see 1663, 1690, 1692 (end), 1692, 1737, 1787, 1812, 1813, 1820.

[2] It is generally believed at the present day that the burnt offerings and sacrifices were signs of the Lord's passion, and that by His passion the Lord atoned for the iniquities of all. Indeed it is believed that He drew away those iniquities on to Himself, and thus bore them Himself, so that those who believe are made righteous and are saved, if only they think, even in the last hour prior to death, that the Lord suffered on their behalf, no matter how they may have lived throughout the whole course of their lives. But such beliefs are mistaken. The passion of the Cross was the utmost degree of temptation endured by the Lord, by means of which He fully united the Human to the Divine and the Divine to the Human, and by doing this glorified Himself. That union itself is the means by which people possessing faith in Him that is grounded in charity are able to be saved. For the Supreme Divine Itself was no longer able to reach the human race which had removed itself so far away from the celestial things of love, and from the spiritual things of faith, that people did not even recognize them any more, let alone perceive them. Consequently to enable the Supreme Divine to come down to all such as this, the Lord came into the world and united the Human to the Divine within Himself. This union could not have been effected except by means of the very severe conflicts brought about by temptations and by means of victories in these, and at length by means of the final temptation, which was that of the Cross.

[3] As a result of this the Lord is able from the Divine Human to enlighten human minds, even those that are quite remote from the celestial things of love, provided that faith grounded in charity is present in them. For in the next life the Lord appears to celestial angels as the Sun, and to spiritual angels as the Moon, 1053, 1521, 1529, 1530, 2441, 2495 - all the light of heaven flowing from Him. The light of heaven is such that when it enlightens the eyes of spirits and angels it also at the same time enlightens their understanding. This ability to enlighten the understanding also exists inherently within that light, so that the amount of internal light, that is, of understanding, which anyone possesses in heaven is the same as the amount of external light he has. This shows the way in which the light of heaven is different from the light of the world. It is the Lord's Divine Human that enlightens both the eyes and the understanding of those who are spiritual, but this could never be done unless the Lord had united the Human Essence to the Divine Essence. And unless He had united them neither men in the world, nor indeed any spiritual angel in heaven, would any longer have possessed any ability to understand or to perceive that which is good or true. Nor thus would they have possessed any blessedness and happiness at all, nor consequently any salvation at all. From this it becomes clear that the human race could not have been saved unless the Lord had assumed the Human and glorified it.

[4] From what has now been stated anyone may decide for himself the truth or otherwise of the idea that people are saved, no matter how they may have lived, if only they think from some inner emotion that the Lord suffered on their behalf and bore their sins. But in reality the light of heaven received from the Lord's Divine Human is able to reach none except those with whom there exists the good that accompanies faith, that is, who lead charitable lives, or what amounts to the same, who possess conscience. The level itself into which that light can operate, that is, the receptacle for that light, is the good that accompanies faith, which is charity and thus conscience. That those who are spiritual have salvation from the Lord's Divine Human, see 1043, 2661, 2716, 2718.