We are nothing before God

You allow me to live but a short span;
before you, all  my years are nothing .

Human existence is a mere whiff of breath.
  Humans are mere shadows that go about
relentlessly. Being but a breath they toil
and rake in a wealth , not knowing who
take it next .

But now , O Lord , what do i await ?
All hope rest in you . Rescue me from all
my sins  and let me not be derided by fools.

I shall keep silent and not open My mouth
since this is your work.

From Psalm 39