To be Holy because God said for us to be Holy, because He is Holy. He told us how to be Holy. Since we want to please Him, we try to follow his "Holy" rules, as you put it.
This is the thing! Christians do not have any rules. They are free in every way when they give up their life to Christ and receive Holy Spirit.
The Holy Bible is the major holy book of Christians.
The holy city for christians is Jerusalem, which is also the holy city of the jews.
Honor and obey your father and your mother.
Yes, Christians have holy text. The book is called the Bible and it is full of examples about how they should live holy.
Christians in the middle ages fought holy wars, which were called the crusades.
Yes indeed the holy book of the Christians is the BIBLE.
To obey God.
The Christians wanted the Holy Lands.
Compliance.
Answer:Jesus Christ, other Christians and non-Christians help Christians.
The Holy Quran , supplemented by the Hadith ( Sayings of the Prophet )" Obey Allah and Obey the Messenger "