Among the many prayers of an exorcist, there is one prayer that has the most power behind it.
What is it?
Priests performing exorcisms will always ask God to cast away an evil spirit, "In the name of Jesus." For Satan, simply the sound of Jesus' name reminds him of his eternal defeat. The name summarizes God's goodness and mercy towards humanity, a reality the devil can't stand.
St. Paul explains the power of Jesus' name in his letter to the Philippians.
God has highly exalted him and bestowed on him the name which is above every name, that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, and every tongue confess that Jesus Christ is Lord, to the glory of God the Father.
Jesus' name implies humility, a virtue Satan does not possess and something many spiritual writers claim was the cause of his fall from Heaven. Satan refused to humble himself and was struck down in his pride.
During his life, Jesus proclaimed to his disciples, "And these signs will accompany those who believe: in my name they will cast out demons" (Mark 16:17).
If you ever feel the presence of evil in your midst, simply recite the name of Jesus, over and over again with faith and love. The dark cloud will lift and Jesus' presence will remain.
It is through Jesus' name that we can conquer our spiritual foes and remain rooted to the tree of life.