The beliefs are believed to have been brought from Persia or the Byzantine Empire.
As regards his life and conduct, he cheats no one, pushes ahead of no one, does violence to no one.
Moreover, his cheeks are pale with fasting; he does not eat the bread of idleness; he labours with his hands and thus makes his living.
The Cathars were largely local, Western European/Latin Christian phenomena, springing up in the Rhineland cities (particularly Cologne) in the mid-12th century, northern France around the same time, and particularly the Languedoc —and the northern Italian cities in the mid-late 12th century. Chesterton, the English Roman Catholic polemicist, claimed: "...
In the Languedoc and northern Italy, the Cathars attained their greatest popularity, surviving in the Languedoc, in much reduced form, up to around 1325 and in the Italian cities until the Inquisitions of the fourteenth century finally extirpated them. the medieval system began to be broken to pieces intellectually, long before it showed the slightest hint of falling to pieces morally.
Other than at such moments of extremis, little evidence exists to suggest this was a common Cathar practice.
The Cathars also refused the Catholic Sacrament of the eucharist saying that it could not possibly be the body of Christ.
This was the antithetical to the monotheistic Catholic Church, whose fundamental principle was that there was only one God, who created all things visible and invisible.
Cathars thought human spirits were the genderless spirits of angels trapped within the physical creation of the evil god, destined to be reincarnated until they achieved salvation through the consolamentum.
The huge early heresies, like the Albigenses, had not the faintest excuse in moral superiority.".
If you question the heretic about his faith, nothing is more Christian; if about his daily converse, nothing more blameless; and what he says he proves by his actions ...
The good God was the God of the New Testament and the creator of the spiritual realm, contrasted with the evil Old Testament God—the creator of the physical world whom many Cathars, and particularly their persecutors, identified as Satan.