John is describing what he sees in terms that he understands. These could be some demonic creatures, they could be some modern war weapon or maybe even something else. I don't think it's so important in knowing exactly what the plagues are brought by but it's the results. Worldly men, no matter what evidence they are faced with, simply will not turn to God. I thought at one time if people could just see God move in miraculous ways it would change minds but that's not true.
Proud men will simply never come to God and the humble don't need miracles, or tribulations.
Today's workout. Back blitz week 4 day 2. 5 sets 10 reps 30-40 seconds between sets.
Pull up, superman, biceps curl, row, rev leg raise, T.