The sixth seal opened
Rev 6:12 And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood;
Rev 6:13 And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind.
The sun moon and stars are sometimes worshipped as idols.
Deu 4:19 And lest thou lift up thine eyes unto heaven, and when thou seest the sun, and the moon, and the stars, even all the host of heaven, shouldest be driven to worship them, and serve them, which the LORD thy God hath divided unto all nations under the whole heaven.
We worship the true God and Jesus, His Son.
Psa 8:3 When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained;
Psa 8:4 What is man, that thou art mindful of him? and the son of man, that thou visitest him?
Psa 8:5 For thou hast made him a little lower than the angels, and hast crowned him with glory and honour.
Psa 8:6 Thou madest him to have dominion over the works of thy hands; thou hast put all things under his feet:
Mat 24:7 For nation shall rise against nation, and kingdom against kingdom: and there shall be famines, and pestilences, and earthquakes, in divers places.
Mat 24:8 All these are the beginning of sorrows.
Rev 6:14 And the heaven departed as a scroll when it is rolled together; and every mountain and island were moved out of their places.
What a terrifying sight, especially for the natural man who has not trusted in Jesus.
2 Pet 3:12 Looking for and hasting unto the coming of the day of God, wherein the heavens being on fire shall be dissolved, and the elements shall melt with fervent heat?
2 Pet 3:13 Nevertheless we, according to his promise, look for new heavens and a new earth, wherein dwelleth righteousness.
Rev 6:15 And the kings of the earth, and the great men, and the rich men, and the chief captains, and the mighty men, and every bondman, and every free man, hid themselves in the dens and in the rocks of the mountains;
Rev 6:16 And said to the mountains and rocks, Fall on us, and hide us from the face of himthat sitteth on the throne, and from the wrath of the Lamb:
It was near to the time of God's wrath poured out upon the earth.
Zep 1:14 The great day of the LORD is near, it is near, and hasteth greatly, even the voice of the day of the LORD: the mighty man shall cry there bitterly.
Zep 1:15 That day is a day of wrath, a day of trouble and distress, a day of wasteness and desolation, a day of darkness and gloominess, a day of clouds and thick darkness,
Zep 1:16 A day of the trumpet and alarm against the fenced cities, and against the high towers.
Zep 1:17 And I will bring distress upon men, that they shall walk like blind men, because they have sinned against the LORD: and their blood shall be poured out as dust, and their flesh as the dung.
Zep 1:18 Neither their silver nor their gold shall be able to deliver them in the day of the LORD'S wrath; but the whole land shall be devoured by the fire of his jealousy: for he shall make even a speedy riddance of all them that dwell in the land.
Rev 6:17 For the great day of his wrath is come; and who shall be able to stand?
Only the elect of God will withstand, for God's wrath shall not abide on them.
1 Th 5:9 For God hath not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ,
Rom 8:9 But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his.