Psa 91:4 He shall cover (screen, fence in, hedge in, defend) thee with his feathers, (wing) and under (below) his wings (army, quarter of the earth, pinnacle) shalt thou trust: (flee for protection, confide in) his truth shall be thy shield (hook, prickliness) and buckler (something surrounding the person).
The Lord promises to be our defense, to surround us in protection under his wings/army...could that mean that an army of angels will be deployed on our behalf?
"Pinnacle" usually indicates a high point, could that indicate the idea of fleeing to the mountains? His truth will surround...which means the only way to do that is if a person has already learned the Truth (the Word).
Psa 91:5 Thou shalt not be afraid (fear, dread) for the terror (sudden alarm, great fear) by night (twist, adversity) ; nor for the arrow (piercer, thunder bolt, wound) that flieth (swooning, faith, flee away, cover) by day (daily) ;
It's interesting that we are told not to fear "terror", when "terrorism" has become such a common household word now.
I once heard someone liken the "arrow" to the missles ... reading in this verse the implication of nuclear exchange, with the instruction that we are not to be afraid of that.
Psa 91:6 Nor for the pestilence (plague) that walketh (haunts, march, leads, travels, whirl) in darkness (dusk, obscurity) ; nor for the destruction (cut off, ruin, destroying) that wasteth (devastate, swell up) at noonday (light, window) .
We are also told that we don't have to fear the plague or supergerms, which I like to biological warfare and the threat of various germ agents that will be let loose on the public.
"Destruction" "swell up" "light" could those all be describing a mushroom cloud? Whatever form it takes, there's a destruction coming that we are told we do not have to fear. That if we will run to God, he will protect us.