I watched as he opened the sixth seal. There was a great earthquake. The sun turned black like sackcloth made of goat hair, the whole moon turned blood red, 13 and the stars in the sky fell to earth, as figs drop from a fig tree when shaken by a strong wind. 14 The heavens receded like a scroll being rolled up, and every mountain and island was removed from its place.
15 Then the kings of the earth, the princes, the generals, the rich, the mighty, and everyone else, both slave and free, hid in caves and among the rocks of the mountains. 16 They called to the mountains and the rocks, “Fall on us and hide us[f] from the face of him who sits on the throne and from the wrath of the Lamb! 17 For the great day of their[g] wrath has come, and who can withstand it?” (Revelation 6:12-17)
Everyone in the world will be terrified when God begins judgment during the coming “day of the Lord.” The events described above occur relatively near the beginning of the “day of the Lord” before God’s anger upon the world for all the wickedness we have done has reached it’s anger (yes, it gets worse later!). But even at this early point in the great tribulation, God’s anger is so terrifying that everyone on the Earth will seek to flee into holes. Their pride and arrogance will be completely devastated; at that moment of time their individual standings in society will be unimportant. Their only concern will be their relationship (or lack thereof) with an angry God who is punishing them for not repenting of their sins. In that day they will wish for death in the vain hope that it will somehow hide them from God.
If you are an unrepentant sinner who loves yourself more than you love others and God, you need to repent from your sins before this day of wrath comes. God loves you, and wants you to enjoy the blessings of Revelation 21, not the horrors of Revelation chapter 6! But if you do not repent of your sins and truly love the One who died for you, than God, because He is holy and righteous, must punish you. He will not excuse you for your personal crimes against humanity (and Deity), but will prosecute you to the full extent of the law for the heartlessness that you have consistently displayed towards others.