Revelation 6:10

6:10 They cried out with a loud voice, “How long, Sovereign Master, holy and true, before you judge those who live on the earth and avenge our blood?”

Revelation 19:2

19:2 because his judgments are true and just.

For he has judged the great prostitute

who corrupted the earth with her sexual immorality,

and has avenged the blood of his servants poured out by her own hands!”