Acts 2:20

20 The sun shall be turned to darkness and the moon to blood, before the coming of the Lord's great and glorious day.

Acts 2:20 Meaning and Commentary

Acts 2:20

The sun shall be turned into darkness
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, ( 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 Matthew 24:29).

Acts 2:20 In-Context

18 Even upon my slaves, both men and women, in those days I will pour out my Spirit; and they shall prophesy.
19 And I will show portents in the heaven above and signs on the earth below, blood, and fire, and smoky mist.
20 The sun shall be turned to darkness and the moon to blood, before the coming of the Lord's great and glorious day.
21 Then everyone who calls on the name of the Lord shall be saved.'
22 "You that are Israelites, listen to what I have to say: Jesus of Nazareth, a man attested to you by God with deeds of power, wonders, and signs that God did through him among you, as you yourselves know—