In chapter 4 of the Book of Amos, verses 1-3 are talking about people who pervert the truths of the church. They will fall into falsities in outermost things.

In the Bible, fish represent "lower" things than mammals, so we can interpret the fishhooks in verse 2 as meaning being caught and held fast in natural or lower things.

Verses 4-6 are about acts of worship such as tithes and sacrifices. These look similar to genuine worship, but are only external sorts of things. We can tell because ‘teeth’ (in verse 6) represent ultimates or outermost things (see Secrets of Heaven 6380). It follows that “cleanness of teeth” would mean outermost things that look good but only imitate genuine worship. The Lord exhorts, “Yet you have not returned to me.”

Verses 7-8. Some things true will remain, when where there are too many false ideas, the truths don't get through. This can be seen where the Lord says, “I made it rain on one city; I withheld rain from another city... where it did not rain the part withered.” Again the Lord exhorts, “Yet you have not returned to me.”

Verse 9. Afterward all things of the church are falsified, shown by blight attacking the gardens, vineyards, fig tree and olive trees. The last three represent spiritual, natural and celestial things, or all the things of spiritual life. “Yet you have not returned to me,” says the Lord.

Verses 10-11. The Lord explains the devastating things he allowed to happen: plague in Egypt, death of young men by swords, stench in the camps, Sodom and Gomorrah. This is because they are profaned by sensual knowledges. Profanation means the mixing of good and evil together. (See Secrets of Heaven 1001[2]).

This extends to all things of the church, with the church being the Lord’s kingdom on earth (Secrets of Heaven 768[3]).

With profanation “as soon as any idea of what is holy arises, the idea of what is profane joins immediately to it,” (Secrets of Heaven 301).

Now there is hardly anything left. “Yet you have not returned to Me,” says the Lord again.

Verses 12-13: Because people adamantly remain in their profane ways, they are warned, “Prepare to meet your God!”. This is the God powerful and mighty, “who forms mountains, and creates the wind,” and even more close to home, “Who declares to man what his thought is.” As intimately a knowing as that is, the Lord’s love for all humanity is contained in His exhortations for them to turn themselves to Him.

See, for example, Luke 6:44-45, and True Christian Religion 373.

3720. 'This is nothing other than the house of God' means the Lord's kingdom as it exists in the ultimate degree of order. This is clear from the meaning of 'the house of God'. In the Word 'the house of God' is referred to in many places, and in the external sense, that is, literally, it means a building where holy worship takes place. But in the internal sense it means the Church, in the more universal sense it means heaven, and in the most universal the Lord's kingdom. In the highest sense however it means the Lord Himself as regards the Divine Human. But in the Word sometimes the expression 'House of God' is used and sometimes 'Temple'. The two are similar in meaning, the difference being that the expression 'House of God' is used when the subject is good but 'temple' when the subject is truth. From this it is evident that 'the House of God' means the Lord's celestial Church, and in the more universal sense the heaven of celestial angels, in the most universal the Lord's celestial kingdom, and in the highest sense the Lord as regards Divine Good; whereas 'the Temple' means the Lord's spiritual Church, and in the more universal sense the heaven of spiritual angels, in the most universal the Lord's spiritual kingdom, and in the highest the Lord as regards Divine Truth, see 2048. The reason why 'the House of God' means that which is celestial and the dwelling-place of good, while 'the Temple' means that which is spiritual and the dwelling-place of truth, is that 'a house' in the Word means good, see 710, 2233, 2559, 3128, 3652, and among the most ancient people used to be built of pieces of wood for the reason that 'wood' meant good, 643, 1110, 2784, 2812, whereas 'the Temple' means truth because it was built of stones - 'stones' meaning truths, see 643, 1296, 1298.

[2] These meanings that 'pieces of wood' and 'stones' possess are clear not only from the Word where they are mentioned but also from representatives in the next life. For people who assume that merit lies in good works seem to themselves to be cutting wood, and those who assume that it lies in truths, that is to say, people who have believed that they knew more truths than anybody else and yet have lived wickedly, seem to themselves to be breaking up stones. I have often seen such people wood-cutting or stone-breaking, from which the meaning of 'wood' and of 'stone' was made clear to me - that good is meant by 'wood' and truth by 'stone'. It has in like manner been made clear to me from the fact that when I have seen a wooden house the concept of good has instantly presented itself, and when I have seen a stone house the concept of truth has done so. And I have also learned from angels about this matter. This is why, when in the Word 'the House of God' is mentioned, the concept of good presents itself to angels, the kind of good depending on the nature of the subject that is being dealt with. And when 'the Temple' is mentioned, the concept of truth presents itself, the kind of truth depending on the subject that is being dealt with. From this one may also deduce how deeply and inwardly concealed the heavenly arcana lie in the Word.

[3] The reason 'the House of God' here means the Lord's kingdom as it exists in the ultimate degree of order is that the subject is Jacob who, as often shown already, represents the Lord's Divine Natural. The natural exists in the ultimate degree of order, for the natural encompasses all interior degrees and includes them all together within itself. And since they are included all together within the natural, and so countless things are beheld as a single whole, obscurity exists there compared with other degrees. This obscurity too has been dealt with frequently.