How is the last sentence of the article, “some of the things i have seen i am quite familiar with, and some i am not," an appropriate development of the article's ideas at that point?

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ok i am here, i brought some cookies and some movies. do you use blu-ray cuz thats all i brought. oh, and my friend wwill be here shortly, he is going to bring some pizza too.

heylo !

explanation:

we would need to be able to read the passage in question to determine which factor allowed david believe he could defeat goliath. post the passage, and i'd love to out.