For hebrew, we have excerpt:
Questions pertaining to the Hebrew language, as related to Judaism. See the help center: https://judaism.stackexchange.com/help/on-topic
And body:
About the Hebrew language.
Note that not all questions about Hebrew are on-topic on the site. See the FAQ list. For a dedicated Stack Exchange site about the Hebrew language, come support the Hebrew Language Area51 proposal.
If you're looking for a tag about the Hebrews — the nation of Jews — as a whole, try instead am-yisrael-jewish-nation.
Following the same pattern for rabbis, I suggest excerpt:
Questions about the lives and personalities of Jewish religious authorities, as related to Judaism. See the help center: https://judaism.stackexchange.com/help/on-topic
And body:
About the the lives and personalities of Jewish religious authorities, as related to Judaism.
Note that not all questions about individual rabbis are on-topic on the site. See the FAQ list.