~ John Murray
Back of all that is visible and tangible in the sin of this world there are unseen spiritual powers. Satan is the god of this world, the prince of the power of the air, the spirit that now works in the sons of disobedience. The arch-foe of the kingdom of God is not the visible powers arrayed against it; for behind these visible agents and manifestations of evil is the ingenuity, craft, malicious design, instigation and relentless activity of the devil and his ministers. It was this of which Paul was fully aware when he said, “We wrestle not against flesh and blood, but against the principalities, against the powers, against the world rulers of this darkness, against the spiritualities of wickedness in the heavenlies” (Eph. 6:12). Because we have given way to the impact of naturalistic presuppositions, and to the anti-supernaturalistic and anti-praeternaturalistic bias, we are far too liable in these days to discount this truth of Christian revelation. We are liable to discard it in our construction and interpretation of the forces of iniquity. To the extent that we do so, our thinking is not Christian.
~ John Murray (1898 – 1975)