The deadliest sins are the ones you’ve made peace with—the quiet dangers that slip beneath your moral radar. The grudge you nurse. The lust you feed. The secret habit you excuse. They slowly turn you into someone you’d hardly recognize. They never settle for being tolerated; they want control. Yet we remain largely blind to their power. That’s why Genesis 4 demands our attention. It’s the first time sin is described in detail—and God Himself issues the warning: “Sin is crouching at the door. Its desire is contrary to you, but you must rule over it.” Sin, the menacing predator… waiting, watching, crouching.