I saw someone ask in Facebook:
Here's my take:
If you look at the scriptures both before and after that statement of Jesus' you will understand that Jesus is saying "I was there and saw Satan (Lucifer, the Devil) cast out of heaven and fall to earth like lightening."
Luk 10:17 And the seventy returned again with joy, saying, Lord, even the devils are subject unto us through thy name.
Luk 10:18 And he said unto them, I beheld Satan as lightning fall from heaven.
Luk 10:19 Behold, I give unto you power to tread on serpents and scorpions, and over all the power of the enemy: and nothing shall by any means hurt you.
Luk 10:20 Notwithstanding in this rejoice not, that the spirits are subject unto you; but rather rejoice, because your names are written in heaven.
The disciples had just mentioned that devils (demons, evil spirits) left when they commanded them to using the name of Jesus.
So Jesus is saying "I was there, saw him fall..." to emphasize that He is still powerful, then He goes on to say that He was giving them power to tread on serpents (another word for Satan) and scorpions (mean "sting").
In my studies of spiritual warfare, I've found that "torment" refers to demons or evil spirits. The only other place in the KJV that you will see the word scorpion is in Rev 9:5 And to them it was given that they should not kill them, but that they should be tormented five months: and their torment was as the torment of a scorpion, when he striketh a man.
Notice the word "torment" and "torment of a scorpion".
Therefore when Jesus says "I give you power to tread on serpents and scorpions" He's saying I'm giving you power over Satan and the demons, which is why it goes on to say "over all the power of the enemy"
Sadly most Christians fail to recognize that the only power Satan has is to deceive and lie. Therefore, he convinces them that he is powerful and they are subject to his power. When in fact, there is not much he fears as much as a Believer who know his/her authority in Jesus Name, and who stands up and resists him and his demons.
Therefore, it is time for Believers to stand up, understand that in the Name of Jesus, you have His authority and power to stand against the hoards of hell. All hell is breaking loose on earth, and the only ones who are going to be able to make it (no matter how much you prep) are those who have on the armor of God, the sword of the Spirit and walk in the authority of Jesus' Name.