Which was a reason for the first crusade?

islamic religious leaders have traditionally been people who, as part of the clerisy, mosque, or government, performed a prominent role within their community or nation. however, in the modern contexts of muslims minorities in non-muslim countries as well as secularised muslim states like turkey, indonesia and bangladesh, religious leadership may take a variety of non-formal shapes.

compared to religious leaders/clerics of the other abrahamic faiths, islamic clergy are said to resemble rabbis and not priests. unlike catholic priests they do not "serve as intermediaries between mankind and god",[1] have "process of ordination",[2] or "sacramental functions",[1] but instead serve as "exemplars, teachers, judges, and community leaders," providing religious rules to the pious on "even the most minor and private" matters.[1]

abraham was promised great blessings by god, both to himself and his family, including all of his descendants. those blessings are called the abrahamic covenant.

the abrahamic covenant bible story has three main features:

1. the promised land of canaan (gen 12: 1) (gen 15: 7).

2. the promise of offspring to a 75-year-old childless abraham (genesis 12: 2) (gen 15: 4-6) (gen 17: 6-8).

3. the promise of blessings and redemption to abraham and the families of the earth through him. (genesis 12: 3).

finally, god gave abraham the rite of circumcision as the specific sign of the abrahamic covenant (genesis 17: 9–14).