it is called a bible
Our book of worship is the Hebrew prayerbook, which is called a siddur and contains the various prayers.
A Church .... why are you asking this question? o_o
The holy book for Christianity is called The Bible.
A Jewish house of worship is called a synagogue or shul. The word "Church" is mainly used in Christianity.
Christianity
Christianity
The second book of Christianity is called Exodus.
The Jewish prayerbook is the Siddur.
Christians are the followers of Christ, what is commonly called the Church although that word means different things to different sects or Christianity. Worship of Christ/God occurs in Christian houses of worship in many different ways and also is practiced in daily life, but it is not worship of Christianity which would be worship of the practice of the following of Christ. That would be to many a type of "idolatry" because we are to worship God, not the followers or the practice of following Him.
About 2.6 Billion people worship Christianity.
The Bible, New Testament
No.