29 In those days, I will also pour out myspirit on the male and female slaves.
30 I will give signs in the heavens and on the earth—blood and fire and columns of smoke.
31 The sun will be turned to darkness, and the moon to blood before the great and dreadful day of the Lord comes.
32 But everyone who calls on the Lord’s name will be saved; for on Mount Zion and in Jerusalem there will be security, as the Lord has promised; and in Jerusalem, the Lord will summon those who survive.