Comparison of Prophecies in the book of Joel and book of Revelation

Book of Joel	Event	Book of Revelation
1:1-4	Locust, Plagues in four stages; The four seals	6:1-8
1:5-6	Great Tribulation; Fifth seal	6:9-11
1:8-20	Warning of the Day of the Lord; Hold seventh seal until "I seal the servants"	7:1-14
2:1-11	Signs of the Day of the Lord; Seven trumpets	8:1-10:11
2:12-17	Call to repentance; Preaching of the two witnesses	6:16-17; 11:3-8
2:18-27	God speaks to Israel, protection to repentant; Sealing of the 144,000	7:3-14
2:28-29	Outpouring of God's Holy Spirit; God’s people to return to Christ	2:1-3:22
2:30-31	Heavenly signs; Sixth seal	6:12-15
2:32	Protection from God, especially from God's judgment at Armageddon	6:17-7:3
3:1-8	Final battle at the Valley of Jehoshaphat; God's judgment of the nations at Armageddon	16:16; 14:14-20; 19:1-21
3:9-16	Call to final war; Christ judges and makes war	19:11-20
3:17-21	Redemption of children of Israel; Millennium	20:2-6
3:21	God dwells in Zion; New Heaven and New Earth	21:1-7; 21:22-27