Acts 2:20

[In that day] the sun will become dark and the moon will [appear] as blood. [This will all happen] before the great and wonderful day when the Lord comes. [Note: Some view these last two verses as a reference to events occurring at the end of time. See Matt. 24:29-30].

Philippians 4:5

You should let your gentleness be known to all people. The Lord is near. [Note: This "nearness" could refer to Christ's second coming or to His nearness to His people in a spiritual sense].

1 Thessalonians 4:16

For the Lord Himself [i.e., Jesus] will come down from heaven with a commanding shout [Note: This probably refers to Jesus' voice. See John 5:25, 28], [and] with the archangel's voice [i.e., Michael. See Jude 9] and with the sound of God's trumpet; [at this] the dead in [fellowship with] Christ will rise [from the dead] first.

Hebrews 12:26

God's voice shook the earth at that time, but now He has promised, saying [Hag. 2:6], "I will cause not only the earth to shake once more, but also heaven [as well]."

James 5:9

Do not complain against one another, brothers, so that you will not [have to] be judged [and condemned for it]. Look, the Judge [i.e., Christ] is standing at the door! [See verse 8].

2 Peter 2:3

And through greedy desires and deceptive words they will exploit you [for evil purposes]. But the judgment that they have had coming for a long time, will not delay, but will eventually awaken [i.e., arrive] to bring destruction upon them.

Revelation 6:15-17

And the kings of the earth, the princes, the military commanders, the rich people, the influential people and every slave and free man hid themselves in the caves and among mountain ledges.

Treasury of Scripture Knowledge

Summary

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.

The mighty

General references

Bible References

Great

Acts 2:20
[In that day] the sun will become dark and the moon will [appear] as blood. [This will all happen] before the great and wonderful day when the Lord comes. [Note: Some view these last two verses as a reference to events occurring at the end of time. See Matt. 24:29-30].
Revelation 6:17
For the terrible day of their anger has come, and who will be able to survive it?"

It is

Philippians 4:5
You should let your gentleness be known to all people. The Lord is near. [Note: This "nearness" could refer to Christ's second coming or to His nearness to His people in a spiritual sense].
James 5:9
Do not complain against one another, brothers, so that you will not [have to] be judged [and condemned for it]. Look, the Judge [i.e., Christ] is standing at the door! [See verse 8].
2 Peter 2:3
And through greedy desires and deceptive words they will exploit you [for evil purposes]. But the judgment that they have had coming for a long time, will not delay, but will eventually awaken [i.e., arrive] to bring destruction upon them.

Even

1 Thessalonians 4:16
For the Lord Himself [i.e., Jesus] will come down from heaven with a commanding shout [Note: This probably refers to Jesus' voice. See John 5:25, 28], [and] with the archangel's voice [i.e., Michael. See Jude 9] and with the sound of God's trumpet; [at this] the dead in [fellowship with] Christ will rise [from the dead] first.
Hebrews 12:26
God's voice shook the earth at that time, but now He has promised, saying [Hag. 2:6], "I will cause not only the earth to shake once more, but also heaven [as well]."

The mighty

Revelation 6:15
And the kings of the earth, the princes, the military commanders, the rich people, the influential people and every slave and free man hid themselves in the caves and among mountain ledges.

General references

Mark 13:24
"But after those days of terrible trouble [i.e., the next major event on God's calendar will be], the sun will become dark, and [therefore] the moon will not [be able to] shed its [reflected] light,
Acts 2:19
And I will display miracles in the sky above and [supernatural] signs on the earth below [consisting of] blood, fire and smoky vapor.