I really need help with my introduction . . . please?

I am pretty terrible when it comes to writing introductions.The question is: The myths are full of instances of the cruelty of the gods. Giving multiple examples, discuss the reasons of the god's cruelty. Is it always justified?Well the only problem I need help on is the introduction. It needs to be in a funnel paragraph form. (Where the beginning is general and ends with specific details with a thesis)She gave us an example like starting with literature to mythology to greek mythology and then that will lead to our thesis. So I have to make broad statement about the main idea and end with a thesis statement, which I already haveMy thesis: Zeus, Hera, and Aphrodite present cruelty in an unjastified manner upon mortals and other gods.I don't know how to link literature, to mythology, then to greek mythology, and then leading to my thesis and this paper's based on cruelty of the gods.Help ? :-/Wow, Millie you just amazed me. If I was to be able to pick best answer right now, I would choose you automatically haha You provided me an outstanding answer and just in time too. Thank you oh so much! You deserve the 10 points! I will give it to you as soon as I'm able too