A dictionary definition should be sufficient to define Religion but, due to the complexity of the topic, it tends to be insufficient, it is necessary to resort to the meaning of faith to understand it better. Let's see what the dictionary tells us; First of all, faith in a god or a group of gods. Second and organized system of beliefs, ceremonies, and rules used to worship a god or group of gods. And finally an interest, belief or activity that is very important to a person or group. In truth, there is no definition that accurately describes what religion is. If there is no explanation that completely encompasses its real meaning, then it is understandable that there is no true universal religion. Religious beliefs may vary from culture to culture, but in most cases they are all based on the same principle: there is something much bigger than us and we must worship it. Since this is such a widespread principle, one might think that religions have some sort of common ground, especially when dealing with two of the oldest and most significant religions in existence today. Judaism and Christianity are two of the most universally practiced religions today. Both are rooted in faith in the Bible. Their origins are based on the Bible. If their foundations are so similar, why are they so different and why can't they see alike? The similarities between these two groups are almost as important as their differences. Examining the history and relationship between Judaism and Christianity would reveal the root of their ancient discord. Roots of Judaism According to the Bible, the origins of the Jewish people can be traced back to Abraham, considered the father of...... half of the document ...... also discusses in depth the distinction of doctrine and theological perspective between Judaism and Christianity.9. Robinson, George (2000). Essential Judaism: A Comprehensive Guide to Beliefs, Customs, and Rituals. New York: Pocket Books.Robinson provides a practical guide to being Jewish. It informs the reader about everything there is to know about being Jewish. Explains Jewish beliefs, traditions, and practices. The origin and history of the Jewish religion are adequately explained in this book.10. Wilberforce, William (1996). A practical vision of Christianity. Massachusetts: Hendrickson Publishers.Wilberforce attempts to demonstrate what he believes to be “true” Christianity. It does so by claiming that current Christian beliefs and so-called truths are wrong. He gives his own opinion on what true Christianity is and has the evidence to support it.