Revelation 10:7

10:7 But in the days when the seventh angel is about to blow his trumpet, the mystery of God is completed, just as he has proclaimed to his servants the prophets.”

Revelation 14:6

Three Angels and Three Messages

14:6 Then I saw another angel flying directly overhead, and he had an eternal gospel to proclaim to those who live on the earth – to every nation, tribe, language, and people.