Psalm 38 is an interesting one, because its overall theme is of feeling chastened by the Lord. To be ‘chastened’ means to be corrected by going through suffering. The speaker does not rail against God at all; he understands the purpose God must have in needing to correct him and bring him to task. He declares his own wrongness and his wretchedness. His trust in the Lord is sure and strong, and we get the sense that he fully understands that all this is the Lord’s way of salvation for him. The opening and closing verses talk about the Lord urgently and with conviction.

Spiritually, this psalm describes our need to understand and accept our frail and broken human nature. By "accepting" I don't mean being satisfied with our spiritual state, or resigned to it. We need even to be practising repentance daily in some way (see The New Jerusalem 163). Repentance involves examining ourselves and seeing our true state and bringing ourselves to the Lord for his aid, protection and illumination. This is an ongoing need. We keep learning to understand more about how the Lord works with us and how we are to manage our spiritual states.

This psalm also describes the Lord’s own deep temptations during his human life. Verses 1 to 10 describe these temptations, such as, “My wounds are foul and festering because of my foolishness” (verse 5). Verses 11 and 12 speak of even those ‘friends’ and ‘companions’ who love good and truth turning from the Lord, wanting his death. Verses 13 and 14 tell us that the Lord bears all this with patience, and verses 15 to 22 (and also verse 9) are about the Lord’s confidence that the hells will not prevail against him.

The psalm begins with the plea not to be punished by the Lord’s anger or his wrath. During our temptations, this is the appearance, yet it is essential that we appreciate that the Lord never punishes but only seek to save us. The Lord’s ‘anger’ is his resolve to free us from evils; the Lord’s ‘wrath’ is his determination to free us from false beliefs. (Arcana Caelestia 3614)

‘Arrows pierce me deeply’ means the way in which the Lord’s truths penetrate our spirit, speaking to it and challenging it and often bringing us pain. (Arcana Caelestia 2686).

The Lord’s hand ‘presses me down’ stands for the Lord’s opposition to our evils (not to us!) because ‘hands’ represent Divine power. (Heaven and Hell 232).

The speaker uses the various organs in our body to describe our various spiritual ailments: flesh, bones, head, wounds, loins, heart and eyes… quite a comprehensive list. ‘Bones’ stand for the truths which support our spiritual frame; ‘loins’ stand for our spiritual loves but also our passions. Each of these organs is defective in the psalm. (Arcana Caelestia 8364)

Verses 11 and 12 talk about the aloofness of friends and relatives, and the deceit of those who want to destroy. Spiritually, this describes the influences that come into our minds during temptation. The heavenly influence seems far off and unable to help us, the hellish influences seem close and condemning. (Arcana Caelestia 9348)

This is immediately followed by words talking about not hearing and not speaking out. In a general way, spiritually, this stands for us not being swayed by the influences – the “voices” – which come into our thought, whatever kind these may be, because we cannot determine their true quality. In a more specific way, it means the refusal to judge and condemn others for their actions. This would be most true of the Lord. (Apocalypse Explained 409)

Then comes the real reason and purpose for us during every temptation, that we are to put our trust in the Lord who hears and knows everything. Only this can be our full confidence.

The final two verses of the psalm are worded as a prayerful request to not be forsaken and to be helped by the Lord. The meaning is right on the surface here. We need to ask the Lord for help, and we also need to understand that the Lord never forsakes us or is unwilling to help.

8148. 'And he took six hundred chosen chariots' means each and every doctrinal teaching that upholds falsity belonging to separated faith, in their own order. This is clear from the meaning of the number 'six hundred' as each and every aspect of the truth and good of faith taken all together, and so in the contrary sense as each and every aspect of the falsity and evil of faith separated from charity (this meaning of 'six hundred' may become clear from what has been shown regarding the number 'six hundred thousand' in 7973); and from the meaning of 'chariots' as doctrinal teachings upholding faith, in this instance separated faith, dealt with just above in 8146. 'Chosen chariots' means the chief doctrinal teachings that uphold that faith, to which all other teachings are subordinate. Those that are subordinate to them or serve them are meant by 'the chariots of Egypt', referred to immediately after the six hundred chosen ones.

[2] It should be recognized that these falsities - the ones that are meant here by Pharaoh, his army and people, and also his chariots, horses, and horsemen - are chiefly falsities present with people whose faith is no more than persuasion, that is, people who persuade themselves that the teachings of the Church they are in are true and who nevertheless lead a life of evil. This kind of faith, unlike saving faith, goes together with evil in life, because it is a faith in which people persuade themselves that everything the Church teaches is true, yet do so not for the sake of truth, or for the sake of life, or even for the sake of salvation (since they have scarcely any belief in this), only for their own advantage, that is, to acquire important positions and wealth, and reputation because of these. It is to gain such advantages that they imbibe religious teachings. Thus they do not learn them to the end that they may be of service to the Church and the salvation of souls, but to themselves and their dependents. Therefore it makes no difference to them whether those teachings are true or false. They do not care which they are, much less do they bother to find out; for they have no affection for truth because it is the truth. They endorse those teachings regardless of the character of them; and when they have endorsed them they tell themselves that they are true, without stopping to think that falsities can be endorsed just as much as truths, 4741, 5033, 6865, 7012, 7680, 7950.

[3] This is how faith that is no more than persuasion arises. And since it does not see the neighbour and the good of the neighbour, or therefore the Lord, as the end in view, only self and the world, that is, important positions and material gain, that kind of faith is linked to evil in life, and not to good in life. For faith, when linked to this good, is saving faith. This kind of faith is imparted by the Lord, but the other has its origin in people themselves. Faith imparted by the Lord remains forever, the other kind melts away in the next life. It even melts away in the world if they can gain nothing by it. As long as they can gain anything they fight for it as if for heaven itself, though in fact they do so not for that faith but for themselves. For the things that belong to faith, which are religious teachings, are for those people simply the means to an end, which is high position and wealth. People in the world with this type of faith are scarcely distinguishable from those possessing saving faith, since they speak and proclaim in favour of religious teachings with an ardour that seemingly belongs to true zeal, but is an ardour fired by selfish and worldly love.

[4] These are the people who are meant in particular by 'Pharaoh' and 'the Egyptians', who in the next life undergo vastation of that kind of faith. When that vastation is completed they are steeped in utter falsities arising from evil, for falsities now burst out of evil. Falsities do so because all evil has falsity present with it, since the two have been joined together. Those falsities make their appearance when such people are left exposed to the evil in their life. That evil is then like fire, and the falsities are like the light coming from a fire. This kind of evil, and the falsity arising from it, is altogether different from other kinds of evil and derivative falsities. It is more loathsome than all the rest, because it is contrary to the forms of good and the truths of faith, and that kind of evil consequently holds profanation within it. Profanation consists in acknowledging truth and good and yet living contrary to them, 593, 1008, 1010, 1059, 2051, 3398, 3898, 4289, 4601, 6959, 6963, 6971.