Serve the Lord with reverent fear.

Psalm 2:11
Serve the Lord with reverent fear, and rejoice with trembling.

What do we define as fear?  Well that answer would have to be
something or someone we are frightened off.  Fear can also mean
that it is something we don't know about.  Ignorance of something
can bring on fear as we don't  it.

To fear God is entirely different.  The meaning of fear here is to
respect God, and to want to obey Him.  It is a desire to those of us
who has accepted God in their lives.  It is not a fear that scares us,

but there is a fear that we will hurt Him, and we do  not want thear at. Yes, to fear God is to respect Him, to follow Him, and to rejoice in Him, and to want to obey Him, with all our being.