The devil is your subject 2.

Then he called his twelve disciples together, and gave them power and authority over all devils, and to cure diseases.” 
Luke 9:1(KJV) 

Our opening scripture reaffirms to us that we have been given power and authority over all devils and to cure diseases. That power is in the Name of Jesus that has been given unto us as stated in Luke 10:17, “… even the devils are subject unto us through thy name.”.
 
Therefore I will like you to make this confession, say “I have power and authority over all devils.” Do you believe this? In Luke 10:1, the Bible says, “After these things the Lord appointed other seventy also, and sent them two and two before his face into every city and place, whither he himself would come.”

This shows us that these men that Jesus sent out was not part of the twelve apostles of Jesus. The Bible records that these were seventy others, they had never casted out devils before, yet Jesus sent them out in His Name, and in the process of the work, as they addressed devils in the Name of Jesus, the devils obeyed. Why? It is because, whenever we are using the Name of Jesus, we are releasing the authority of Jesus. And no devil can stand that authority.Therefore, know that every child of God has been commissioned to cast out devils in the Name of Jesus. You do not need to be known as a Pastor before you can function in your authority in Christ, all you need to have is faith in the Name of Jesus.

Confession.
I thank my God who has given me the victory through our Lord Jesus Christ. Therefore I declare that I am strong, am unmoveable, am steadfast, always abounding in the work of the Lord because I function in the authority of the Name of Jesus.

For further study read: 
John 14:12, Acts 4:33, Acts 8:3-7.

Doing the Word
Function in the authority of the Name of Jesus.