Guttural R
Many Jewish immigrants to Israel spoke a variety of Arabic in their countries of origin and pronounced the Hebrew rhotic as an alveolar tap , similar to Arabic '. Gradually, many of them began pronouncing their Hebrew rhotic as a voiced uvular fricative , a sound similar or (depending on the Arabic dialect) identical to Arabic '. However, in modern Sephardic and Mizrahi poetry and folk music an alveolar rhotic continues to be used.
Sacred language
However, Classical Arabic is not itself sacred, and holds no inherent spiritual significance. This is unlike, for example, the significance of Biblical Hebrew in Judaism, Sanskrit in Hinduism, or Avestan in Zoroastrianism. Though the Qur'an was revealed to Muhammad in Arabic, other prophets received revelation in their own languages - e.g., Moses was revealed the Torah in Hebrew, and Jesus was revealed the Injil in Aramaic. These revelations were no less divine than the Qur'an; their texts have only become less divine, as their original message was corrupted over generations. The Arabic used in Muslim worship was also the same language used in day-to-day life by Arabs at the time, and the fact that the Qur'an was revealed to humans in Arabic does not make the Arabic language itself more sacred than any other. Sermons are delivered in local vernacular.