“I have given you authority to trample on snakes and scorpions and to overcome all the power of the enemy; nothing will harm you.”
The power has already been bestowed upon us. No need to look for it to manifest elsewhere. For God has control of you and even your adversary. You have the power to go through the poison and malevolent unharmed. Yes, the enemy may scratch the surface (feelings/emotions) but there can be no fatality to the soul.