Hebrew.
Although, it is important to note that the term "official language" refers to a national government, which Judaism does not have. While Israel is a Jewish country, it is not a country ruled by Judaism. (This is as opposed to Vatican City which is a nation ruled by Catholicism.) Judaism does have a sacred language and a religious language (both of which are Hebrew), but the term "official language" is not apropos.
Judaism's primary language is Hebrew
No, Spanish is not the official language of Egypt. Arabic is the official language of Egypt.
The official language of Maryland is English.
No, Australia actually has no official language at the federal level. However, English is the most widely spoken and commonly used language in the country.
California has not designated an official language. The state recognizes English as the de facto language for government and official business, but there is no official language specified in the state's constitution or legislation.
Rome doesn't technically have an official language.
Yes, Spanish is the official language in Managua, Nicaragua. It is spoken by the majority of the population and used for all official purposes, including government, education, and media.
The official language in Egypt is "Arabic".
Sanskrit is the official language
Quebec's official language is French.
Dutch is the official language of Suriname.
Ukrainian is the official language of Ukraine.