God uses ordinary people to accomplish His purposes. Our ability comes through grace. Every believer is sitting in heavenly places in Christ. Your position in Christ is high above all principality and power. You must see who you are in Christ.
You can do all things through Christ. It is important to know your authority and engage the enemy in faith. There is no need to fear. Demons are subject to the authority of the believer. Jesus gives us the power to tread on serpents and scorpions (Luke 10:19). He promised that nothing will by any means harm us.
Two important revelations every believer needs are an understanding of power and an understanding of authority.
Power is the Greek word dunamis. Authority is the Greek word exousia. Authority is the legal right to use power. We have been given authority to use the power supplied by the Holy Spirit.
We receive power through the Holy Spirit (Acts 1:8). God is able to do exceeding abundantly according to the power that operates in us. Jesus cast out demons through the power of the Holy Spirit (Matt. 12:28). We combine the power of the Holy Spirit with the authority of the name of Jesus to rout the enemy. We do not engage the enemy in our own power and authority. We engage the enemy through the power of the Holy Spirit and in the authority of the name of Jesus.
We have been given the legal right to use the name of Jesus. The name of Jesus is above every name. Authority in the name of Jesus is recognized by the spirit realm. We cast out demons in that name. We bind the works of darkness in that name. We teach and preach in that name.
It is also important to make sure your sins are forgiven when engaging the enemy. If we confess our sins, He is faithful and just to forgive us, and to cleanse us from all unrighteousness (1 John 1:9). Do not engage the enemy with unconfessed sin in your life. There is power in the blood of Jesus. His blood cleanses us from all sin. Give no place to the devil. You must operate in righteousness.
We are made righteous through faith. We are the righteousness of God in Christ (2 Cor. 5:21). Many believers suffer from feelings of inferiority and low self-esteem because they do not understand righteousness. Righteousness gives us confidence. Righteousness gives us boldness. Righteousness is the scepter of the kingdom (Heb. 1:8). The righteous are as bold as a lion (Prov. 28:1).
God covers our heads in the day of battle (Ps. 140:7). A covering is a protection. Covering is based on subjection to God, His Word, and the Holy Spirit. Humility and submission are important characteristics of believers who engage in spiritual warfare.