That is a painstakingly long literature based answer, which would need 50-150 pages of meticulous notes based on historical and archaeological records
I ain't got the time these days to indulge people to that length of written explanations, but here is a starting point.
The entire linguistic and conceptual basis for a peaceful and harmonious humanity originates from Indian, Greek and Roman philosophy - who formulated new policies of reform to nations, which were constantly rejected by the pagan civilizations that had seen them appear in.
Under Peter, Christianity won the support and resources of the philosophers and philosophical communities in the Mediterranean region by promising to implement as many of these humanitarian policies as they could, should Christians gain widespread acceptance.
Across the world, in the Indian Subcontinent, Hinduism under the Brahman Priesthood and Buddhism under the Buddhist Priesthood entered into collaborative policy projects with India's philosophers and philosophical communities to transform Asia and the Far East into more peaceful and harmonious nations .
The success of these joint projects led to the disappearance of those philosophers and philosophical communities, because these regions entered a period of peacefulness and harmony that led them to look to their religious leaders for wisdom.
Foreign invaders destroyed those policy projects. Because, the philosophers and their philosophical communities had disappeared, their was no-one left to rebuild after periods of sustained violence caused to these regions.
Islam arose in period of no philosophy and no philosophical communities, therefore the religion has nothing similar to Christianity's civilized period under Augustine of Hippo (13 November 354 – 28 August 430) or Hinduism/Buddhism karma principals.
Key dictionary terms specifically originating from philosophy:
Morals: 1) adhering to or directed towards what is right; virtuous. 2) of or relating to character or conduct considered as good or evil.
Ethics: 1) a science of morals, that branch of philosophy which is concerned with human character and conduct; a system of morals or rules of behaviour; a treatise on morals.
Principle: 1) source, root, origin. 2) fundamental theoretical basis.
When these three things are combined, it creates the highest moral and ethical explanation, which deliver the effects of peacefulness and harmony domestically for nations.
Christianity did not have this directly in the bible (Old Testament), but because the early Christians lived up to these higher philosophical explanations for 400 years (100AD-500AD) it is an optional part of Christianity' history, which comes and goes rather like fashion trends amongst modern day Christian communities.
Hinduism, Buddhism, Sikhism, etc have this linguistic heritage (partially) included within their religious books, but the terms have different names or expressed as mechanisms to achieve good lives.
Islam does not have this heritage, nor does it have it included in its books. Islam is akin to an ancient pre-philosophy pagan religions, which offered vast rewards in the afterlife via following rules divorced from the philosophy (science) of morals, ethics and principles.