Deuteronomy 10:12

And now, Israel, what doth the Lord thy God require of thee. — “Although ye have done all this, still His tender mercies and His affection are set upon you, and after all that ye have sinned before Him, He doth not ask anything of you but to fear,” &c. (Rashi). The Rabbis have drawn this exposition from hence: “Everything is in the hand of Heaven (to bestow), save only the fear of Heaven.” But it is written elsewhere, “I will put my fear in their hearts, that they shall not depart from me.” (Comp. also Micah 6:8; Matthew 23:23.)