The Day of the Lord
"The Day of the LORD” is a biblical term and theme used in both the Hebrew Bible (יֹום יְהוָה Yom Adonai) and the New Testament (ἡμέρα κυρίου, hēmera Kyriou), as in "The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the LORD 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.