Psalms 19:9 The fear of the LORD is clean, enduring for ever: the judgments of the LORD are true and righteous altogether.
 
“Psalms 19:9  The fear of the Lord - The word rendered fear in this place - יראה  yir'âh - means properly fear, terror,  -- with reverence, and with deep apprehensions of the consequences of not serving and obeying him.  That is, serve him in not opposing, but in promoting his purpose of establishing a kingdom under the Messiah, with the deep apprehension that if you do not do it, he will arise and crush you in his wrath.” - with excerpt from Psa 2:11 - Barnes