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.

336. And every mountain and island was moved out of its place. This symbolically means that all goodness of love and truth of faith vanished.

No one can see that this is the symbolic meaning except by recourse to the spiritual sense. It is the symbolic meaning because mountains mean people who possess the goodness of love, inasmuch as angels dwell upon mountains - those motivated by love toward the Lord on loftier mountains, and those motivated by love for the neighbor on less lofty ones. Consequently "every mountain" symbolizes all goodness of love. Islands mean people relatively removed from the worship of God, as may be seen in no. 34 above - here people who are impelled by faith, and not so much by the goodness of love. Therefore in an abstract sense "every island" means, symbolically, all truth of faith. To be moved out of their places means, symbolically, to go away.

It derives from the abodes of angels on mountains and hills, therefore, that mountains and hills in the Word symbolize heaven and the church where love toward the Lord and love for the neighbor are found, and in an opposite sense, hell where self-love and love of the world are found.

[2] It is apparent from the following passages that mountains and hills symbolize heaven and the church where love toward the Lord and love for the neighbor are found, thus where the Lord is present:

Lift up your eyes to the mountains, whence comes your help. (Psalms 121:1)

Behold, on the mountains the feet of him who proclaims... peace! (Nahum 1:15, cf. Isaiah 52:7)

Praise Jehovah..., you mountains and... hills...! (Psalms 148:7, 9)

A mountain of God is the mountain of Bashan; a mountain of hills is the mountain of Bashan. Why do you leap, you mountains, you hills of the mountain? Jehovah has desired to inhabit them; (Jehovah) also will inhabit them forever. (Psalms 68:15-16)

The mountains skipped like rams, the hills like the young of the flock... You travail, O earth, at the presence of the Lord... (Psalms 114:4-7)

I will bring forth a seed from Jacob, and from Judah an heir of My mountains, that My elect may inherit them, and My servants dwell there. (Isaiah 65:9)

(In the consummation of the age:) then let those who are in Judea flee to the mountains. (Matthew 24:16)

(O Jehovah,) Your righteousness is as the mountains of God. (Psalms 36:6)

Jehovah will go forth and fight... In that day His feet will stand on the Mount of Olives, opposite Jerusalem on the east. (Zechariah 14:3-4)

[3] Since the Mount of Olives symbolized Divine love, therefore during the days the Lord preached in the Temple, but during the nights He went out and spent the night on the Mount of Olives (Luke 21:37; 22:39, John 8:1). And therefore the Lord spoke upon that mountain with His disciples regarding His coming and the end of the age (Matthew 24:3, Mark 13:3-4).

Since a mountain symbolized heaven and love, therefore Jehovah came down upon the top of Mount Sinai and proclaimed the Law (Exodus 19:20; 24:17). And therefore the Lord was transfigured before Peter, James and John on a high mountain (Matthew 17:1). Therefore Zion also was located on a mountain, and so, too, Jerusalem, and the two were called the mountain of Jehovah and the mountain of holiness in many places in the Word.

Mountains and hills have similar symbolic meanings elsewhere, as in Isaiah 7:25; 30:25; 40:9; 44:23; 49:11, 13; 55:12; Jeremiah 16:15-16; Psalms 65:6; 80:10; 104:5-10, 13.

[4] That mountains and hills symbolize these loves can be seen still more clearly from their opposite meaning, in which they symbolize hellish loves, namely, self-love and a love of the world, as is apparent from the following passages:

...the day of Jehovah... shall come... upon all the high mountains, and upon all the hills that are lifted up... (Isaiah 2:12, 14)

Every valley shall be exalted and every mountain and hill brought low. (Isaiah 40:4)

The mountains shall be overthrown, and its ascents shall fall... (Ezekiel 38:20-21)

Behold, I am against you, O... mountain, that destroys all the earth... ...I will make you a burnt mountain. (Jeremiah 51:25)

I beheld the mountains, and, lo, they are shaken, and all the hills are overthrown. (Jeremiah 4:23-25)

...a fire is kindled in my anger..., and it will set on fire the foundations of the mountains. (Deuteronomy 32:22)

I will lay waste the mountains and hills... (Isaiah 42:15)

Behold, (O Jacob,) I will make you like a threshing sledge... that you may thresh the mountains and crush them, and make the hills like chaff..., that the wind may carry them away. (Isaiah 41:15-16)

Give glory to Jehovah... before your feet stumble on the dark mountains... (Jeremiah 13:16)

Nor is anything else meant by the seven mountains on which the woman - namely Babylon - sat (Revelation 17:9). And so also elsewhere, as in Isaiah 14:13; Jeremiah 50:6; 9:10; Ezekiel 6:2-3; 34:6.

It can now be seen from this what is meant by the statement that "every mountain and island was moved out of its place," and later by the statement that "every island fled away, and the mountains were not found" (Revelation 16:20, no. 714).