Luke 10:19
I have given you authority to trample on snakes and scorpions and to overcome all the power of the enemy; nothing will harm you.
'Snakes and scorpions' are worldly authority. The power of the Enemy (the Devil), is in his sinful nature embedded in man which he sowed through Adam and Eve. He uses these 'snakes and scorpions' to carry out his evil schemes and wiles on God's Chosen in Christ. God's chosen in Christ are those who continually put to death the whole sinful nature of the Devil in themselves. These truly live resenting the sinful nature of the Devil in themselves and by the power of God's Spirit within them, they overcome all the power of the Enemy. Once Christformation has occurred within their born again spirits, no harm can come to them. Those who oppose them will be opposing Jesus Christ our Lord directly. Therefore, nothing can harm them. The Enemy cannot harm them no matter how hard he tries. The 'snakes and scorpions' will be trampled by them. They are rendered powerless by the authority given to them by the Lord Jesus Christ. Why 'snakes and scorpions' you may ask? Deception is the word. Snakes and scorpions are deceptive creatures and these who obey the sinful nature of the Devil in them, get deceived themselves and try to deceive others too. In the end, the ones who will get crushed is them. Have you observed the behavior of snakes and scorpions, especially when they are attacked? They go berserk here and there, finding ways to strike back. The ones who will be 'crushed to powder' in the end will be them because they have walked into God's trap. They will try to 'hiss here and hiss there' but to no avail. They have been rendered powerless long, long time ago and they still don't know it. Yes, not until they face the crushing defeat this time. A lesson they should have learnt a long time ago but it has been reserved till this day. The time is here for them, finally. Now, they would learn the actual meaning of the verses of the Bible below.
Ephesians 6:12
For our struggle is not against flesh and blood, but against the rulers, against the authorities,against the powers of this dark world and against the spiritual forces of evil in the heavenly realms.