Jesus Christ's role as Avenger emerges from His own prophetic teaching in the Olivet discourse, where He foretells a coming tribulation so severe that "unless those days were shortened, no flesh would be saved" (Matthew 24:21-22). Luke's parallel account (21:20-24) reveals that this tribulation centers on Jerusalem and Judea, and critically identifies these as "the days of vengeance, that all things which are written may be fulfilled." This detail reframes the nature of the end-time threat: rather than technological self-destruction, the true peril is divine vengeance, fulfilling what has already been prophesied throughout Scripture. This vengeance is rooted in Leviticus 26:25, where God promises to bring "the vengeance of the covenant" against Israel for covenant unfaithfulness, using Gentile nations as instruments of judgment before then judging those same nations for their own wickedness—a pattern explaining why "no flesh" would survive apart to God's mercy. Jesus Himself points to His own future role as Avenger in His inaugural sermon at Nazareth (Luke 4:18-19), where He deliberately stops short of quoting the full text of Isaiah 61:2, omitting "the day of vengeance of our God." This omission signals that while His first coming brought grace and liberty, His second coming will fulfill the withheld portion—executing vengeance while also bringing comfort to those who mourn over sin. Paul reinforces this in II Thessalonians 1:6-10, describing Christ's return "in flaming fire taking vengeance on those who do not know God, and on those who do not obey the gospel," resulting in "everlasting destruction from the presence of the Lord." Acts 17:30-31 ties this directly to Christ's resurrection, which serves as God's assurance that He has appointed Jesus as the Judge of the world, since ignorance is no longer excusable once the gospel is preached worldwide. Revelation extensively portrays Christ as the executor of divine vengeance and wrath, depicted as the Lamb whose wrath causes men to hide (Revelation 6:16-17), who treads "the winepress of the fierceness and wrath of Almighty God" with a sword from His mouth (Revelation 19:15), and under whose reign the martyrs' blood is avenged upon the corrupt (Revelation 18:20; 19:2). This wrath climaxes in the seven last plagues, which complete "the wrath of God" (Revelation 15:1). This vengeance, though severe, is not contrary to divine love; rather, it is love's necessary expression against a creation that persistently refuses its Creator, as unpunished sin would itself be unloving and unjust. Ecclesiastes 8:11-13 explains that delayed judgment only emboldens wickedness, making Christ's eventual intervention as Avenger both merciful toward the elect and righteously just toward the unrepentant, who—even amid final plagues—refuse to repent and blaspheme God rather than turn to Him (Revelation 9:20-21; 16:8-11).