“And they overcame him (i.e. the accuser) because of the blood of the Lamb and because of the word of their testimony, and they did not love their life even when faced with death” Rev 12:11 (NASB).  Death is the threat the enemy uses against us to induce fear and silence our testimony.  To love something more than our own lives makes us a threat to the kingdom of darkness.  If Christ has proven by His resurrection that death has been defeated, then death is no threat.  Nothing can stop us.