Over the last 1,500 years and until 1948, the Muslim faith has been the predominant religion there.
The Holy See has never invaded the Philippines. The Spanish Empire controlled the Philippines for several centuries and with it's control came establishment of the Roman Catholic Church as the official religion. That gave the Holy See (or Vatican) a degree of authority and power there.
The Holy Bible.
Holy Quran.
The religion is called Islam; the followers are called Muslims.
Almost all major religions have holy books and holy languages.
The Torah is the holy book of Judaism.
No body is holy in Islam religion
Muslims controlled it before and after. The crusades were pointless
sikhism
holy
Atheism.
Judaism, the Jewish religion.