Summary: Since both chapters 15 and 16 deal with the wrath of God - I have combined the two. This is a verse by verse look at both chapters fifteen and sixteen of the book of Revelation.
The Revelation Of Jesus Christ – Chapters 15-16
I. Things Which Thou Hast Seen – Rev 1
II. Things Which Are – The Church Age – Rev 2-3
III. Things Which Are To Come – Rev 4-22
A. The Throne Of God – Rev 4
B. The Seven Seals Book – Rev 5
C. The First Six Seals Are Opened – Rev 6
D. The Sealing Of The Saved – Rev 7
E. The Lamb Opens The Seventh Seal – The First Four Trumpets Sound – Rev 8
F. Sounding of the Fifth and Sixth Trumpets – Rev 9
G. The Little Book – Rev 10
H. The Measuring Rod – The Two Witnesses – The Seventh Trumpet Sounds – Rev 11
I. The Woman and the Dragon – Rev 12
J. The Beasts – Rev 13
K. The Lamb on Mount Zion – Rev 14
L. The 7 Vials Of God’s Wrath – Rev 15-16
John Mc Arthur says that the historical outpourings of God's wrath fall into several categories.
First is what might be called "sowing and reaping" wrath. People sin and suffer the logical consequences of that sin; "Those who plow iniquity and those who sow trouble harvest it"
A second kind of wrath is cataclysmic wrath, when God sends massive, destructive judgment. That judgment may engulf the entire world, as it did with the Flood, or a smaller region, as when God destroyed Sodom and Gomorrah.
A third king of wrath is God’s wrath of abandonment which you can find in Romans chapter one. In that chapter – Paul three times used the phrase "God gave them over" to demonstrate God's judicial abandonment of sinners, removing restraint to the deadly consequences of their sinful choices.
Fourthly -- there is God's wrath of the tribulation period.
Fifth – there is God’s eternal wrath – the ultimate result of eternal wrath will be the sentencing of all unrepentant sinners to hell forever.
Chapters fifteen and sixteen deal with God’s wrath
Rev 15:1 (NASB) “Then I saw another sign in heaven, great and marvelous, seven angels who had seven plagues, which are the last, because in them the wrath of God is finished.”
(1) I saw – Rev. 15:1
(a) another sign in heaven – v. 1
-with seven plagues
the last plagues
because in them the wrath of God is finished
Rev 15:2-4 (NASB) “And I saw something like a sea of glass mixed with fire, and those who had been victorious over the beast and his image and the number of his name, standing on the sea of glass, holding harps of God. And they *sang the song of Moses, the bond-servant of God, and the song of the Lamb, saying, "Great and marvelous are Your works, O Lord God, the Almighty; Righteous and true are Your ways, King of the nations! Who will not fear, O Lord, and glorify Your name? For You alone are holy; For ALL THE NATIONS WILL COME AND WORSHIP BEFORE YOU, FOR YOUR RIGHTEOUS ACTS HAVE BEEN REVEALED."
(b) something like a sea of glass – v. 2
-1 mixed with fire
(c) saints who had been victorious
-1 over the beast
-2 over the beast’s image
-3 over the beast’s number