BSN: the day of the Lord

In its most generic sense, the expression “the day of the Lord” refers to the judgment of God, as in the day the Lord judged Sodom and Gomorrah.
In the Old Testament, this expression is used by the prophet to warn people about God’s impending judgment for their sins and therefore the people’s need to repent.
- It comes as destruction (Is 13:6; Joel 1:15), as it did for Jerusalem in 586 BC and 70 AD.
In the New Testament, since Jesus was named Lord after His resurrection from the dead, it became known as His day.
There are many variations of this phrase –
- [“day of the lord”] 29x (NT 7x; OT 22x)
- [“day of the lord jesus”] 1x – 1 Cor 5:5
- [“the day of our lord jesus”] – 2 Cor 1:14
- [“the day of our lord jesus christ”] – 1 Cor 1:8
- [“the day of christ jesus”] 1x – Phil 1:6
- [“the day of christ”] 2x – Phil 1:10; 2:16
- [“the day of god”] – 2 Pet 3:12;
- [“the great day of god the almighty”] – Rev 16:14
- [“the great day of their wrath”] – Rev 6:17
- Sometimes referred to simply as “the day” or “that day”
  - “the day” – Ezek 30:2, 3
  - “that day” – Is 2:11, 17; Zech 14:9
More synonymous terms:
- “day of darkness” – Job 15:23; Joel 2:2; Zeph 1:15 e
- “day of destruction” – Zeph 1:15 e
- “day of judgment” – Matt 10:15; 11:22, 24; 12:36; 2 Pet 2:9; 3:7; 1 Jn 4:17 e
- “day of reckoning” – Is 2:12 e
- “day of wrath” – Rom 2:5; Prov 11:4; Zeph 1:15 e
- and more