Martin Luther on Flesh

“When you see a person squirming in the clutches of the Law, say to him: “Brother, get things straight. You let the Law talk to your conscience. Make it talk to your flesh.”

“When speaking of the spiritual nature or the soul, we are referring to that which is “inner” or “new.” When speaking of the bodily nature, or that which is flesh and blood, we are referring to that which is called “sensual,” “outward,” or “old.” Paul writes in 2 Corinthians 4:16: “Even though our outer nature is wasting away, our inner nature is being renewed day by day.””