Acts 2:20

20 The sun will be turned to darkness, and the moon to blood, before the great and remarkable day of the Lord comes;

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 I will even pour out My Spirit on My male and female slaves in those days, and they will prophesy.

19 I will display wonders in the heaven above and signs on the earth below: blood and fire and a cloud of smoke.

20 The sun will be turned to darkness, and the moon to blood, before the great and remarkable day of the Lord comes;

21 then whoever calls on the name of the Lord will be saved.

22 "Men of Israel, listen to these words: This Jesus the Nazarene was a man pointed out to you by God with miracles, wonders, and signs that God did among you through Him, just as you yourselves know.