All the horrors and suffering that come with the seventh trumpet (for it is the third woe, Revelation 11:14) shall not upset God’s promise to protect his own and bring them safely to the New Jerusalem. Precisely how God would protect and preserve may remain a mystery (= as yet unclear), but this promise as voiced through the prophets of old will certainly come to pass.
7 but that in the days of the trumpet call to be sounded by the seventh angel, the mystery of God would be fulfilled, just as he announced to his servants the prophets.