They ask you about wine and gambling. Say, "In them is great sin and [yet, some] benefit for people. But their sin is greater than their benefit."
-- 2:219 http://quran.com/2/219
Keep in mind that the Quran was revealed piece by piece over two decades. The later parts add to the earlier parts. That can be a source of ambiguity to Western readers (not to mention that the chapters are not in chronological order), which is why it's important to understand it as a whole rather than its individual verses or chapters.
What do you mean?
https://en.wikipedia.org/wiki/Hadith
The result is a very large body of knowledge, on the order of 10k, some accepted as trustworthy and others not. The Christian tradition has seen various books included or excluded from the bible, with anything not making the cut deemed heretical. Everything included became sacrosanct and above debate. The more varied approach applied to hadith spills over into Islamic culture, especially law. Arguably, current Islamic extremist movements are a fusion of Islamic rules interpreted through a very Christian mindset: in or out, forbidden or not, with little room for debate. They focus only on the Koran, as Christians historically focused only on the bible.
This medieval jug can also no more tell us about "Islam" than a pot from 13th century Ireland can tell us about Lutheranism . At best they are tiny snapshots within an epic history.