Complex sentence: The main deity in the tentatively Indo-European pantheon of the Yazidis, Melek Taus, similar to the devil in Christian and Islamic traditions, refused to bow down before humanity, therefore Christians and Muslims often consider Melek Taus to be Satan.
Split into simpler sentences: The main deity in the tentatively Indo-European pantheon of the Yazidis, Melek Taus, is similar to the devil in Christian and Islamic traditions, as he refused to bow down before humanity. Therefore Christians and Muslims often consider Melek Taus to be Satan.