Is it a living language or a dead one like Latin.
There's more than one Hebrew...
Simplifying a bit....
Biblical Hebrew is used in various Jewish religious contexts but not spoken freely on a daily basis and has no native speakers that I know of.
Israeli Hebrew is the language of the modern state of Israel.The idea of reviving Hebrew as an everyday lingua franca for Jews comes from the late 19th century.
The result while highly successful as a language is often not much like earlier versions of the language. The most semitic parts of the language are no longer productive and large parts of the language are basically relexified Yiddish (yiddish constructions with Hebrew words).
en.wikipedia.org/wiki/Modern_Hebrew
I thought they spoke Yiddish?
In the modern world the biggest concentration of Yiddish speakers is in NE America (the greater NYC area). Some conservative Jews in Israel continued to use it as much as possible as they thought Hebrew was too sacred to use to buy tomatoes in the market (as it were) though I think that has weakened in recent years.
Try to find Israeli tv shows with subtitles on netflix (or similar).
My favorite so far was Losing Alice, which starts out a bit like All About Eve but then goes in very different directions....
en.wikipedia.org/wiki/Losing_Alice