Acts 2:20

“The sun shall be turned into darkness, etc.] As at the death of Christ, by a total eclipse of it: and the moon into blood; as at the opening of the sixth seal, (<660612>Revelation 6:12) before that great and notable day of the Lord come; when he shall come in power and great glory, as he did in a few years after this, to take vengeance on the Jews, and destroy their nation, city, and temple; in which there was a display of his greatness, and power, and which was awful and “terrible” to them, as in Joel it is called; (See Gill on “<402429>Matthew 24:29”).”

“The sun shall be turned into darkness - See the notes on Matthew 24:29. The same images used here with reference to the sun and moon are used also there: They occur not infrequently, Mark 13:24; 2 Peter 3:7-10. The shining of the sun is an emblem of prosperity; the withdrawing, the eclipse, or the setting of the sun is an emblem of calamity, and is often thus need in the Scriptures, Isaiah 60:20; Jeremiah 15:9; Ezekiel 32:7; Amos 8:9; Revelation 6:12; Revelation 8:12; Revelation 9:2; Revelation 16:8. To say that the sun is darkened, or turned into darkness, is an image of calamity, and especially of the calamities of war, when the smoke of burning cities rises to heaven and obscures his…”

“The moon shall be turned into blood - A bloody colour: before the day of the Lord - Eminently the last day; though not excluding any other day or season, wherein the Lord shall manifest his glory, in taking vengeance of his adversaries. Acts 2:21”

“sun: Isa 13:9, Isa 13:15, Isa 24:23; Jer 4:23; Amo 8:9; Mat 24:29, Mat 27:45; Mar 13:24; Luk 21:25; Pe2 3:7, Pe2 3:10; Rev 6:12, Rev 16:8 great: Isa 2:12-21, Isa 34:8; Joe 2:1, Joe 3:14; Zep 2:2, Zep 2:3; Mal 4:5; Co1 5:5; Th1 5:2; Pe2 3:10 Acts 2:21”