What is a Messianic siddur? Why do siddurs exist? Should a Messianic Gentile own a siddur? Should someone receit their daily prayers in English or Hebrew? 

Jewish prayer is connected with a time an season.  In Hebrew, the word siddur translates to "order"; therefore, a siddur is a Jewish prayer book that has a set order of daily prayers. The siddur outlines the Shabbat services. The siddur, however, does not include services from special occasions, such as the feast days. These can be found in the Jewish Machzor. The prayers and readings are from the first 5 books of the Bible (the Torah) and the writings of the prophets, in compilation to the additions Jewish sages made to the book, such as prayers and hymns.

The siddur was first printed in Italy in 1486, and wasn’t mass distributed until the last 19th century. The siddur is the most widely circulated and best-known Jewish book and is regarded as the first book a Jewish person should learn to read. 

Commonly, siddurs are transliterated into English, meaning the phoentics of the Hebrew sounds is spelled out so English-speaking people are able to follow along and participate in weekly Shabbat services. This also aids traditional Jews how are unable to read Hebrew fluently to receit their daily prayers in the Hebrew language. Jews have prayer services three times a day, morning, afternoon and evening, and the siddur give order to the prayers that should be receited.