Revelation 2:16

2:16 Therefore, repent! If not, I will come against you quickly and make war against those people with the sword of my mouth.

Revelation 2:22

2:22 Look! I am throwing her onto a bed of violent illness, and those who commit adultery with her into terrible suffering, unless they repent of her deeds.

Revelation 16:11

16:11 They blasphemed the God of heaven because of their sufferings and because of their sores, but nevertheless they still refused to repent of their deeds.