Tribulation saints

Revelation 6:9 When He opened the fifth seal, I saw under the altar the souls of those who had been slain for the word of God and for the testimony which they held.

10 And they cried with a loud voice, saying, “How long, O Lord, holy and true, until You judge and avenge our blood on those who dwell on the earth?”

11 Then a white robe was given to each of them; and it was said to them that they should rest a little while longer, until both the number of their fellow servants and their brethren, who would be killed as they were, was completed.

Ahh, the faithfulness of God. Even though, all of humanity has been warned to be ready for Christ' soon return, we learn that here, during the 7 years of great tribulation upon this earth, God will still reap a harvest of souls. However, if you dont live for Him now, you will have to die for Him then.