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Matthew 28:18
Then Jesus came to them and said, “All authority in heaven and on earth has been given to me.

Authority is a delegate power, that is to be given the power of a superior to act and operate on their behalf. As a church, we have the authority of Jesus, our lord to function in his stead.

Vs 19-20
Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.

The lord Jesus gave us his authority to advance his kingdom on earth. Jesus gave us his authority to function in his name.He said

And these signs shall follow them that believe; In my name shall they cast out devils, it shall not hurt them; they shall lay hands on the sick, and they shall recover

We have received power over demons,disease causing agents,sickness and evil influences.
Why must you be disadvantaged when we have received the power for change?

The power is in the name of JESUS, use it ! Use the name of Jesus to root out evil works and effect changes. We are to pray in the name Jesus and not through the name of Jesus. To pray through the name of Jesus is to come to the father through Jesus. That’s what happened when we believed in Jesus for the first time. Now, we are a child of God and a representative of Christ with His authority to function in His name. Stand in the authority Jesus has given to us and maintain your victory all through.