Introduction to Apocalyptic Scripture
Apocalyptic scripture deals with the problem of keeping faith in spite of the evil and injustice in the world. It describes a time when God will suddenly intervene in the world, punishing evil and helping his people.[1]
A term that is often used for the time of God's final intervention is day of the Lord. Some of the Old Testament passages describe the day of the Lord as the time when Gentile nations are punished for their treatment of Israel.[2] Many Jews began to assume that as Jews they had nothing to fear from the judgment of God. The prophets tried to show them that they also would be judged if they were sinners (Zephaniah 1:12, Amos 5:18-27) and would not be spared simply because they were Jews; but the assumption remained.
It was difficult for Jews to accept the fact that they needed to be saved. For example, baptism was a ceremony that they used to bring Gentiles into Judaism. They did not baptize Jews. John the Baptist baptized Jews, and his practice offended some Jews who thought they did not need baptism or repentance. They thought they were favored by God because they were Abraham's children (Matthew 3:9).
In the book of Romans, Paul referred to the day of wrath (2:5) and the day when God judges (2:16). These references follow from his theme in 1:16-18, that the gospel is salvation from the wrath of God. In 2:2-3 he shocks self-righteous Jews with the fact that they also have reason to fear the day of the Lord. Even the Jews need salvation.
[1] Old Testament apocalyptic scripture includes Daniel, Zechariah, Joel, Ezekiel 37-39, and Isaiah 24-27. In the New Testament, we find Matthew 24, Luke 21, Mark 13, 2 Thessalonians 2, and Revelation.
[2] Some examples are Zechariah 12 and Joel 3.