"The Day of the Lord" is a biblical term and theme used in both the Hebrew Bible (Old Testament; יֹום יְהוָה) and the New Testament (ἡμέρα κυρίου), as in "The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the come" (Joel 2:31, cited in Acts 2:20). In the Hebrew bible, the meaning of the phrases refers to temporal events such as the invasion of a foreign army, the capture of a city and the suffering that befalls the inhabitants. This appears much in the first chapter of Isaiah.