Then the fifth angel poured out his bowl on the throne of the beast, and his kingdom became darkened; and they gnawed their tongues because of pain, and they blasphemed the God of heaven because of their pains and their sores; and they did not repent of their deeds.” Revelation 16:7-11.
You will note that despite this fierce punishment, the wicked did not repent.
However, maybe, God will use this Revelation to draw you by His grace to repentance and salvation.
Maybe, this Revelation (that God is just and fiercely punishes the wicked) will cause you to act like the jailer who trembled with fear, humbled himself by falling down before Paul and Silas, and asked how he could be saved.
We are called to repent and believe in the Lord Jesus Christ for salvation.
Here is the story of the jailer in Acts 16:29-31: “And he called for lights and rushed in, and trembling with fear he fell down before Paul and Silas, and after he brought them out, he said, “Sirs, what must I do to be saved?” They said, “Believe in the Lord Jesus, and you will be saved, you and your household.” Acts 16:29-31.
And yet, if we have repented and believed in the Lord Jesus Christ for salvation, let us also recognize Scripture which teaches us that we repent and believe through the grace of God. We don’t do so, because we are wiser or are more humble or have more willpower. Ephesians 2:8-9 states: “For by grace you have been saved through faith; and that not of yourselves, it is the gift of God; not as a result of works, so that no one may boast.” Jesus said in John Chapter 6, verses 44 and 65: ” “No one can come to Me unless the Father who sent Me draws him; and I will raise him up on the last day. … And He was saying, “For this reason I have said to you, that no one can come to Me unless it has been granted him from the Father.”
This is the summary and conclusion. Repent! Believe in Jesus! Praise God for His gift of salvation!
Reformed Doctrine Daily Devotions 