Revelation 2:13

2:13 ‘I know where you live – where Satan’s throne is. Yet you continue to cling to my name and you have not denied your faith in me, even in the days of Antipas, my faithful witness, who was killed in your city where Satan lives.

Revelation 6:9-10

6:9 Now when the Lamb opened the fifth seal, I saw under the altar the souls of those who had been violently killed because of the word of God and because of the testimony they had given. 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 12:11

12:11 But they overcame him

by the blood of the Lamb

and by the word of their testimony,

and they did not love their lives so much that they were afraid to die.

Acts 22:20

22:20 And when the blood of your witness Stephen was shed, I myself was standing nearby, approving, and guarding the cloaks of those who were killing him.’