'Day of the Lord' in the Bible

The sun shall be turned into darkness and the moon into blood, before the great and illustrious day of the Lord comes.

to deliver such a one to Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord.

as you have also acknowledged us in part, that we are your rejoicing as you also are ours in the day of the Lord Jesus.

for you yourselves know perfectly that the day of the Lord comes like a thief in the night.

that you be not soon shaken in mind, nor terrified, neither by a spirit, nor by a discourse, nor by an epistle as from us, as though the day of the Lord was at hand.

But the day of the Lord will come as a thief, in which the heavens shall pass away with a crash, and the elements be melted with heat, and the earth and the works in it be consumed.