7 but in the days of the voice of the seventh angel, when he is about to sound, then the mystery of God is finished, as he declared to his servants, the prophets.
the voice of the seventh angel – the expression “voice” is literally “the sound” and likely refers to the “voice as a trumpet” see also Rev 8:13. The seventh angel is the Archangel, the Spirit of Christ, see Rev 16:17, who has a voice as a trumpet in Rev 1:10.
when he is about to sound then mystery of God is finished as He preached to His servants the prophets – the eating of the little book has interrupted the sounding of the seventh trumpet, which occurs in Rev 11:14. What is the great mystery that is revealed from the eating of the little book? It is the meaning of the “time, time and half a times,” the most significant spiritual mystery of the Book of Revelation. The meaning of: “the mystery of God” refers back to Dan 12:9, the mystery of this prophecy will not be understood until the end time, when all is revealed.