What happens when you speak colloquial Hebrew is you switch between registers all the time. So in a typical sentence, three words are biblical, one word is Russian, and one word is Yiddish. This kind of connection between very high language and very low language is very natural, people use it all the time.
Etgar KeretI think the typical way is that usually Holocaust survivors are known to be very quiet and full of anxiety, many of them don't like life, don't trust people. But my parents were children during the Holocaust. And my father was very optimistic.
Etgar Keret