Casting: ἐκβάλλω ekbállō, ek-bal'-lo; from G1537 and G906; to eject (literally or figuratively):—bring forth, cast (forth, out), drive (out), expel, leave, pluck (pull, take, thrust) out, put forth (out), send away (forth, out).
Then Jesus said to him, "Go, Satan!...
And He was casting out a demon, and it was mute; when the demon had gone out, the mute man spoke; and the crowds were amazed.
When evening came, they brought to Him many who were demon-possessed; and He cast out the spirits with a word, and healed all who were ill.
And He healed many who were ill with various diseases, and cast out many demons; and He was not permitting the demons to speak, because they knew who He was.
Demons also were coming out of many, shouting, "You are the Son of God!" But rebuking them, He would not allow them to speak, because they knew Him to be the Christ.
Greek ἐπιτιμάω (epitimaō) - Rebuke in order to curb ones ferocity or violence - restrain - to keep one away from another
And He went into their synagogues throughout all Galilee, preaching and casting out the demons.
And He said to them, "Go and tell that fox, 'Behold, I cast out demons and perform cures today and tomorrow, and the third day I reach My goal.'
But Jesus rebuked him, saying, "Be quiet and come out of him!" And when the demon had thrown him down in the midst of the people, he came out of him without doing him any harm.
Matthew 8:32 And He said to them, "Go!" And they came out and went into the swine, and the whole herd rushed down the steep bank into the sea and perished in the waters.
For He had been saying to him, "Come out of the man, you unclean spirit!'
For He had commanded the unclean spirit to come out of the man. For it had seized him many times; and he was bound with chains and shackles and kept under guard, and yet he would break his bonds and be driven by the demon into the desert.
Demons can drive someone to physically move away
When Jesus saw that a crowd was rapidly gathering, He rebuked the unclean spirit, saying to it, "You deaf and mute spirit, I command you, come out of him and do not enter him again."
Now the woman was a Gentile, of the Syrophoenician race. And she kept asking Him to cast the demon out of her daughter.
The demons began to entreat Him, saying, "If You are going to cast us out, send us into the herd of swine."
After the demon was cast out, the mute man spoke; and the crowds were amazed, and were saying, "Nothing like this has ever been seen in Israel."
Demons cause illness
Now after He had risen early on the first day of the week, He first appeared to Mary Magdalene, from whom He had cast out seven demons.
But the Pharisees were saying, "He casts out the demons by the ruler of the demons."
Demons lie and deceive
But when the Pharisees heard this, they said, "This man casts out demons only by Beelzebul the ruler of the demons."
"If I by Beelzebul cast out demons, by whom do your sons cast them out? For this reason they will be your judges.
The scribes who came down from Jerusalem were saying, "He is possessed by Beelzebul," and "He casts out the demons by the ruler of the demons."
But some of them said, "He casts out demons by Beelzebul, the ruler of the demons."
"If Satan also is divided against himself, how will his kingdom stand? For you say that I cast out demons by Beelzebul. "And if I by Beelzebul cast out demons, by whom do your sons cast them out? So they will be your judges.
"If Satan casts out Satan, he is divided against himself; how then will his kingdom stand?
"But if I cast out demons by the finger of God, then the kingdom of God has come upon you.
"But if I cast out demons by the Spirit of God, then the kingdom of God has come upon you.
Paul, having become greatly annoyed, turned and said to the spirit, “I command you in the name of Jesus Christ to come out of her.”
And when he had entered the house, his disciples asked him privately, “Why could we not cast it out?” And he said to them, “This kind cannot be driven out by anything but prayer.”
When it will not leave with a command in the name of Jesus, then we must pray it out and ask Jesus to send it away.
However, the majority of the time, a simple command in the name of Jesus Christ will force the demon away. We must use the authority Christ gave us if we are to minister fully in His power. He expects us to drive out the demons.
“O faithless generation, how long am I to be with you? How long am I to bear with you? Bring him to me.”
Jesus says about not casting out the demon.
Let's not be faithless, let's do the work of the ministry that God has called us to. The fullness of the ministry, which means to share the gospel, heal the sick, and cast out the demons -- all in his name.
Matthew 10:1And he called to him his twelve disciples and gave them authority over unclean spirits, to cast them out, and to heal every disease and every affliction.
And he appointed twelve (whom he also named apostles) so that they might be with him and he might send them out to preach and have authority to cast out demons.
The seventy-two returned with joy, saying, “Lord, even the demons are subject to us in your name!” And he said to them, “I saw Satan fall like lightning from heaven. Behold, I have given you authority to tread on serpents and scorpions, and over all the power of the enemy, and nothing shall hurt you. Nevertheless, do not rejoice in this, that the spirits are subject to you, but rejoice that your names are written in heaven.”
We don't find joy in that authority of the demons, but we find joy in the gospel. The authority over the demons is simply to minister to others, so they can live victorious Christian lives.