Tyndale Open Bible Dictionary

DAY OF THE LORD

Expression used by OT prophets (as early as the eighth-century BC prophet Amos) to signify a time in which God actively intervenes in history, primarily for judgment. Thus “the day of the Lord” is also called “the day of the Lord’s anger” (Zep 2:2).

Sometimes “the day of the Lord” is used in the OT to speak of a past judgment (Lam 2:22). More often, an impending future judgment is in view (Jl 2:1-11). Ultimately, though, the term refers to climactic future judgment of the world (Jl 3:14-21; Mal 4:5). Often, prophecy of a near-future event and an end-time prophecy are merged—the immediate judgment being a preview of the final Day of the Lord. The prophecy of Isaiah against Babylon is an example (Is 13:5-10). Jesus combined events described there with other prophecies to explain his second coming (Mk 13:24-37). Another example is Joel’s prophecy of the Day of the Lord (Jl 1:15–2:11). Though the prophet initially spoke of God’s judgment on Israel by a locust plague, that judgment prompted further pronouncements about a final Day of the Lord far beyond Joel’s time (2:14-17, 31). That Day of the Lord extended even beyond the outpouring of the Holy Spirit at Pentecost predicted by Joel’s prophecy (Jl 2:28-32; Acts 2:16-21; Rv 6:12-13). The NT uses the term exclusively to mean the end time.

The final Day of the Lord is characterized in the Bible as a day of gloom, darkness, and judgment. Associated with God’s judgment is language depicting changes in nature, especially a darkening of the sun, moon, and stars (Is 13:10; Jl 2:31; 3:15; Mt 24:29; Rv 6:12). Nations will be judged for their rebellion against God’s anointed people and king (Jl 3:19; cf. Ps 2). Israel is counseled not to be eager for that day, because it will also include judgment on the chosen nation (Am 5:18-20). But the prophets promise that a believing “remnant” will be saved by looking to the Messiah they once rejected (Jl 2:32; Zec 12:10). Following the judgment, the future Day of the Lord will be a time of prosperity, restoration, and blessing for Israel (Jl 3:18-21).

The more explicit NT expressions—“the day of our Lord Jesus Christ” (1 Cor 1:8), “the day of the Lord Jesus” (1 Cor 5:5; 2 Cor 1:14), and “the day of Christ” (Phil 1:10; 2:16)—are more personal and more positive. They point to final events related to Christian believers, who will not experience the wrath of God (1 Thes 5:9). When the Day of the Lord comes, the earth will be renewed and purified through a judgment of fire (2 Pt 3:10-13). In the book of Revelation the final purging seems to come after the Millennium—that is, the 1,000-year reign of Christ (Rv 21:1).