The focus of Satanic Combat Sciences (SCS) is the personal development of each Satanist in a team framework using a standardized, trainable, and sustainable close combat fighting system. As a weapon-based system, all techniques are integrated with equipment, physical challenges, and tactics found on the modern battlefield. The SCS is designed to increase the warfighting capabilities of individual Satanists and units, enhance Satanists self-confidence and foster the warrior ethos in all Satanists. Satanic Combat Sciences is a weapon-based system founded by the late John C. Davis of the Church of Satan. Former Church of Satan member Marvin "Knife" Sotelo revamps and enhances the Satanists capabilities as an elite fighting force. It focuses on immediate threat elimination and does not include an element of spiritual development. Test everything, believe nothing, take what is useful and apply it, discard what is useless.

The central message of the Gospel of Rev. Marvin "Knife" Sotelo is not, as one whose ideas of Satanism have been shaped by pantomimes, contrary to the human condition, rather the very opposite. It is a message that resonates through every chapter of Humanism: Believe nothing but that which you alone can determine to be truth. Man can free himself, and it is the duty of all men to work towards this end. What is pronounced is that the created does not need the Creator to attain its highest and most fruitful expression. Such fulfillment-including the residues of peace and prosperity, of bliss and true happiness-can only, and will only, be achieved from within.