Thou shalt not be afraid for the terror by night;
nor for the arrow that flieth by day
from Matthew Henry's Commentary:
Here is great security promised to believers in the midst of this danger:
"Thou shalt not be afraid.
God by his grace will keep thee from disquieting distrustful fear
(that fear which hath torment) in the midst of the greatest dangers.
Wisdom shall keep thee from being causelessly afraid,
and faith shall keep thee from being inordinately afraid.
Thou shalt not be afraid of the arrow,
as knowing that though it may hit thee it cannot hurt thee;
if it take away the natural life,
yet it shall be so far from doing any prejudice to the spiritual life
that it shall be its perfection.'
A believer needs not fear, and therefore should not fear,
any arrow, because the point is off, the poison is out.
O death! where is thy sting? It is also under divine direction,
and will hit where God appoints and not otherwise.
Every bullet has its commission.
Whatever is done our heavenly Father's will is done;
and we have no reason to be afraid of that.
