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.

442. It is extremely important to realize that goodwill is closely linked to faith in the Lord. The quality of the faith determines the quality of the goodwill. For the point that the Lord, goodwill, and faith form a unity in the same way our life, our will, and our intellect form a unity, and that if we separate them, each one crumbles like a pearl that is crushed to powder, see 362 and following above. Also see the point that goodwill and faith come together in good actions, 373-377. From those teachings it follows that the quality of our faith determines the quality of our goodwill; and the quality of our faith and goodwill combined determines the quality of our actions.

Now, if we believe that everything good that we do as if we are doing it on our own actually comes from the Lord, then we are the instrumental cause of that good and the Lord is its principal cause. These two causes seem to us to be one thing, but in fact the principal cause affects every aspect of the instrumental cause. It follows then that if we believe that everything truly good comes from the Lord, we do not take credit for what we do. The more developed this faith becomes in us, the more the Lord takes away our fantasies about getting credit for what we have done. In this state we can practice goodwill abundantly without a fear of taking credit. Eventually we sense the spiritual pleasure in goodwill. Then we become averse to taking credit because doing so is damaging to our life.

It is easy for the Lord to erase people's idea that they deserve credit, provided those people attain goodwill primarily through working justly and faithfully in the position, business, or line of work they are in and with the people with whom they interact (see 422, 423, 424 above). If, however, people believe that they attain goodwill through making charitable donations and helping the needy, it is difficult to rid them of the idea that they deserve credit, because as they make those contributions their desire for reward and credit, although obvious to them at first, becomes less noticeable [to them] as time goes by.