The class of workers where Johnson place writers of dictionaries is those "who toil at the lower employments of life." This refers to the people with low paying jobs. These people have fears, knowing that they are going to be punished if they don't succeed.
Didacticism is a term that refers to a particular philosophy in art and literature that emphasizes the idea that different forms of art and literature ought to convey information and instructions, along with pleasure and entertainment. ... However, some literary texts are entertaining as well as didactic.
Figurative Language, like Hyperbole, ect to be creative and set the mood of the story