Psalm 23 is undoubtedly the most well-known and well-loved of all the psalms, with its illustration of the Lord as our shepherd. The shepherd's care for his sheep is, internally, describing the things that the Lord does for us in our spiritual journey.

As the psalm unfolds we hear about the Lord’s work for us, during states in our lives when we could be unsure and afraid, and of the Lord’s provision for us. Gradually the psalmist confirms his trust in the Lord’s guidance and declares the many blessings the Lord brings.

This psalm of six verses would surely have been known and loved by the Lord during his life in the world. It would have, for him, been a statement of faith in his purpose to overcome evil and glorify his humanity. Jesus, in states where his human heredity was strong in his mind, would have regarded his own divinity as his shepherd, and seen it as his anchor and provider. For us, spiritually, the same parallel applies -- that our faith in the Lord is to be our trust and guide at all times.

The shepherding care in verses 2 and 3 speaks about how the Lord leads us into acquiring new truths that bring heavenly peace and rest for us. Our state is lifted up and we live in goodness because we understand that this is the divine quality that God wishes for us to live by. (See Apocalypse Explained 375 and Arcana Caelestia 3696)

The valley of the shadow of death describes our states of being afraid, and of not seeing the Lord with us, during which our mind can be filled with disturbing and mocking thoughts. But we know that the Lord is there with us nonetheless. The “rod” and “staff” represent the power of the Lord’s truths for us to use; a rod - used actively to guard the sheep - stands for spiritual truths, and a staff is leaned on, representing natural truths or truths to do with life.”

(Apocalypse Explained 727)

With the provision of truth from the Lord, the psalm shifts to the picture of the bounteous table which truth brings to us as our spiritual nourishment and satisfaction. Our head anointed with oil has many associations of being the Lord’s chosen, of being loved and blessed by the Lord, and of how our mind with its understanding receives love and good to make it full of heavenly joy. “My cup runs over” means the unknown extent of the truths of the Word and the blessings of the Lord. (Apocalypse Explained 727)

The final verse is put in terms of our full conviction of being in the Lord for ever and in all the days of our lives. What we experience and say in terms of time and duration spiritually means what is certain, perpetual and to all eternity. The ‘house of the Lord’ is heaven. (Arcana Caelestia 650)

9632. 'And a covering from the skins of badgers above that' means outside that [another mantle], a mantle consisting of truths derived from external good. This is clear from the meaning of 'a covering' as a mantle, as just above in 9630; from the meaning of 'skins' as external truths, dealt with in 9471; and from the meaning of 'badgers' as forms of good, also dealt with in 9471.

Any further explanation of the things which have been stated so far regarding the dwelling-place, the tent over it, and the two coverings over that, can be dispensed with, since they are such as would be scarcely intelligible owing to the lack of proper knowledge. For where that knowledge is lacking there is blindness; thus there is no reception of light nor consequently any concept of the matter. Few if any people know that heaven is represented and thereby described by the dwelling-place, and the external part of it by the tent and its two coverings. The reason why there is no proper knowledge of these things is that scarcely anyone is aware of the fact that heavenly realities are meant by all that is written in the Word, thus that there is an inner meaning or spiritual sense within every detail there. Scarcely anyone knows either that this sense is not apparent in the letter, only from the letter to those who, having learned about correspondences, receive light from the Lord when they read the Word.

[2] Indeed scarcely anyone is aware of the fact that a person governed by the good of love and faith is heaven in the smallest form this can take, or that such a person in respect both of the more internal aspects of his being and of the more external corresponds to heaven, 9276. If these things had been known the learned in the Christian world who have acquired some knowledge regarding the parts of the human body could have received some light of understanding and therefore have had some concept of heaven. They could have discerned which particular realities in heaven are represented by the ark, its mercy-seat, and the cherubs above it; which particular realities by the table on which the loaves of the Presence were laid, the lampstand, and the gold altar for incense; also which particular ones are represented by the dwelling-place, its curtains, boards, and bases, and lastly by the tent and the two coverings over it. For similar things are met with in the human being, in the things with him that are internal and those that are external. They also present themselves in material form in his body; and to these [material parts of his body] the internal things have an exact correspondence. For unless the external things, which belong to the body, had an exact correspondence with the internal ones, which belong to the understanding and the will, there would not be any life in the body, nor thus any actions in accord with them.

[3] Similar things are said to be met with in the tabernacle as in the human being because representatives on the natural level resemble the human form and have the same meaning as the parts of it they resemble, 9496. External things within the human being provide four coverings which surround and enclose all that is more internal; these coverings are what animal skins and actual skins of the body refer to. See what has been mentioned from experience in 5552-5559, 8980, regarding the correspondence of the latter to internal things. The coverings which constituted the roof and sides of the tabernacle provided a similar representation. From all this the understanding may gain some light regarding the forms that heaven takes. Nevertheless that light will be snuffed out with all who have no definite knowledge regarding the things that exist within the human body and at the same time no definite knowledge regarding the spiritual realities belonging to faith and the celestial realities belonging to love, to which those things in the body correspond. Since most people are in the dark, indeed in thick darkness, so far as those realities and human physiology are concerned, owing not only to their lack of knowledge but also to their lack of belief, any further explanation of them has been dispensed with; for as stated above, they would be unintelligible because there is no light of understanding in such matters.