'Completed' in the Bible

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."

When they have completed their testimony, the beast that comes up from the abyss will make war on them and conquer them and kill them.

Then I saw another great and astounding sign in heaven: seven angels who have seven final plagues (they are final because in them God's anger is completed).

and the temple was filled with smoke from God's glory and from his power. Thus no one could enter the temple until the seven plagues from the seven angels were completed.