The first altar mentioned in the Word was the one built by Noah after he came out of the ark, after being saved from the great flood. On that altar, he sacrificed clean animals to the Lord.

Mountains represent the Lord because of their height; we need to raise our thoughts above worldly things when "talking" with the Lord. An altar is a small artificial mountain. When it's used in worship, it can call to mind this raising of thought. The fire and smoke that rise from an altar are symbolically being sent to the Lord.

Most altars were made from unhewn stones. Stones represent truths. Unhewn stones - ones that have not been shaped by men - represent truths from the Word, truths that have not been adulterated.

The clean beasts to be sacrificed represent good things, charitable acts done because they are right. The clean birds represent thoughts about doctrine and actions, and about what is right. Presenting these things is an acknowledgment that we have them from the Lord, and a giving thanks to Him for them.

In the Israelitish Tabernacle, the altar of burnt offering represented the acknowledgment of good and the altar of incense that of truth. For this reason this larger altar, which was outside by the door, was made of brass which signifies natural good, while the altar of incense was made of gold, which signifies love to the Lord from whom comes truth.

9684. 'And the lampstand across from the table, at the side of the dwelling-place towards the south' means the enlightenment of the spiritual kingdom by means of the Divine Truth emanating from the Lord's Divine Human to those who are governed by good. This is clear from the meaning of 'the lampstand' as the Lord in respect of Divine Truth, thus as Divine Truth emanating from His Divine Human, and the enlightenment given to His spiritual kingdom, dealt with below; from the meaning of 'the table', on which the loaves of the Presence were laid and which the lampstand was 'across from', as the Lord in respect of celestial good, thus that very good from which and through which the Lord flows into the spiritual kingdom or middle heaven, also dealt with below; and from the meaning of 'at the side of the dwelling-place towards the south' as in the heaven where the Divine Truth emanating from the Lord's Divine Human dwells in the greatest light. For the dwelling-place outside the veil, where the lampstand was, is the middle heaven, 9594, and 'the south' is where Divine Truth dwells in its own light, 9642. The instructions that the lampstand in the dwelling-place, and also the table on which the loaves of the Presence were laid, were to be positioned close to the veil, the lampstand however at the side of the dwelling-place towards the south, but the table at the side towards the north, are arcana of heaven which cannot be properly brought to light unless it is known that the dwelling-place represented heaven, and the objects in the dwelling-place the celestial and spiritual realities which exist in heaven. What the lampstand represented has been shown already in 9548, and what the table on which the loaves of the Presence were laid represented in 9527, 9545. What 'the south' means has been shown in 9642, and what 'the north' in 3708. From all this it becomes clear that 'the lampstand at the side of the dwelling-place towards the south' means the enlightenment of the spiritual kingdom by means of Divine Truth emanating from the Lord's Divine Human.

[2] But to lay bare those actual arcana, something must be stated about the whole situation in heaven. The Lord appears to those who belong to the celestial kingdom as the Sun, but to those who belong to the spiritual kingdom as the Moon. The Lord as the Sun appears mid-way above the horizon, before the right eye, and as the Moon also mid-way above the horizon, before the left eye. It is from the Lord as the Sun that angels in His celestial kingdom derive their light, and from the Lord as the Moon that those in the spiritual kingdom derive theirs; regarding those two kingdoms, see the places referred to in 9277. The light in the heavens is Divine Truth emanating from the Lord's Divine Human; and when that truth has been received by angels belonging to the spiritual kingdom it is called the truth of faith springing from the good of charity towards the neighbour. This good together with that truth constitute the middle heaven, called the spiritual heaven. The lampstand in the dwelling-place represented the Moon from which those belonging to the spiritual kingdom derive their light; it accordingly represented the Lord's presence there as Divine Truth, since, as has been stated, the Lord appears to those who belong to that kingdom as the Moon. From all this it now becomes clear why the lampstand was placed 'towards the south', for the south is where Divine Truth dwells in light, 9642; also why the table on which the loaves of the Presence were laid was placed 'towards the north', for the north is where Divine Truth dwells in obscurity, 3708, as at the same time does Divine Good, meant by 'the loaves' laid on that table. That good becomes spiritual good through the reception of Divine Truth, like the reception of light from the moon. These are the arcana that are meant by the lampstand and its position 'towards the south', and by the table on which the loaves of the Presence were laid and its position 'towards the north'.

[3] The fact that 'the lampstand' means Divine Truth emanating from the Lord's Divine Human is clear from the Book of Revelation,

I saw seven golden lampstands, and in the midst of the seven lampstands one like the Son of Man, clothed with a long robe, and surrounded by a golden girdle around the breasts. Revelation 1:12-14.

'The Son of Man' is the Lord in respect of Divine Truth emanating from His Divine Human, 2803, 2813, 3704. And elsewhere in the same book,

The glory of God will give light to the holy city Jerusalem, and its lamp is the Lamb. Revelation 21:23.

'The glory of God' is Divine Truth emanating from the Lord, 9429. 'The lamp' which is 'the Lamb', that is, the Lord, is the faith and consequently the intelligent understanding of truth and wise discernment of good which come from the Lord alone, 9548. The new Jerusalem is the Lord's New Church, 2117.

[4] The Lord is the Sun to those who are in the celestial kingdom and appears as the Moon to those who are in the spiritual kingdom, see 1053, 1521, 1529-1531, 3636, 3643, 5097, 7083, 7173, 7270, 8644, 8812. Consequently in the Word the Lord in respect of celestial good is meant by 'the sun', and the Lord in respect of spiritual good by 'the moon', 1529, 1530, 2441, 2495, 4060, 4696, 7083, 8644. The Lord as the Sun appears mid-way above the horizon, before the right eye, and as the Moon also mid-way above the horizon, before the left eye, 1531, 4321 (end), 7078, 7171.

So it is that the east in heaven is where the Lord appears as the Sun, and the south where the Lord appears as the Moon.

The light from the Lord as the Sun and Moon is Divine Truth emanating from His Divine Human, 1053, 1521-1533, 1619-1632, 2776, 3094, 3138, 3167, 3190, 3195, 3222, 3223, 3337, 3339, 3341, 3636, 3643, 3862, 3993, 4060, 4180, 4302, 4408, 4414, 4415, 4419, 4527, 4598, 5400, 6032, 6313, 6315, 6608, 6907, 7174, 8644, 8707, 8861, 9399, 9407.

Since the light from the Lord as the Sun and the Moon is Divine Truth emanating from Him, the heat from the Lord as the Sun there is the Divine Good of His Divine Love, 3338, 3339, 3636, 3643, 5215, 6032.

[5] All this goes to show the nature of the difference between the Lord's celestial kingdom and His spiritual kingdom so far as the reception of Divine Truth is concerned. That is to say, it is like the difference between light from the sun and light from the moon.

Those in the spiritual kingdom, in comparison with the others, dwell in obscurity so far as the truth of faith and the good of charity are concerned, 2708, 2715, 2718, 2831, 2849, 2935, 2937, 3241, 3833, 6289, 6500, 6945, 7233. These primarily are the ones to have been saved by the Lord's Coming into the world, 2661, 2716, 3969, 6372, 6854, 6914, 7035, 7091, 7828, 7932, 8018, 8054, 8159, 8321, 9596; and the enlightenment they have is in the Lord's Divine Human, 2716, 2833, 2834.

But those belonging to the spiritual Church are saved who lead a good life based on the truths of faith, 2954, 6435, 6647, 6648, 7977, 7992, 8643, 8648, 8658, 8685, 8690, 8701.