When we become true Christians, we have an enemy - Satan and his fallen angels and demons. But we have received from the Lord authority to resist the enemy with the authority of his Name, Jesus. If you encounter a demon (normally invisible) or an alien-like creature or a UFO, just say out loud: "Leave, in the Name of Jesus." It should then leave immediately, but some are stubborn, testing your faith. So repeat what you said until it leaves. Ask the blood of Jesus over you if necessary. You can also cast a demon out of a person in the name of Jesus.
Eph 6:12 [WEB]
For our wrestling is not against flesh and blood, but against the principalities, against the powers, against the world’s rulers of the darkness of this age, and against the spiritual forces of wickedness in the heavenly places.
2Cor 10:3-5
3 For though we walk in the flesh, we don’t wage war according to the flesh; 4 for the weapons of our warfare are not of the flesh, but mighty before God to the throwing down of strongholds, 5 throwing down imaginations and every high thing that is exalted against the knowledge of God and bringing every thought into captivity to the obedience of Christ,
Luke 9:1, 2
1 He called the twelve together, and gave them power and authority over all demons, and to cure diseases. 2 He sent them out to preach God’s Kingdom and to heal the sick.
Luke 10:19
Behold, I give you authority to tread on serpents and scorpions, and over all the power of the enemy. Nothing will in any way hurt you. [Note by TJ: That nothing will hurt you does not apply to heavy spiritual warfare]
Mark 3:14, 15
14 He appointed twelve, that they might be with him, and that he might send them out to preach, 15 and to have authority to heal sicknesses and to cast out demons
Mark 6:12, 13
12 They went out and preached that people should repent. 13 They cast out many demons, and anointed many with oil who were sick, and healed them.
Mark 16:17, 18
17 These signs will accompany those who believe: in my name they will cast out demons; they will speak with new languages; 18 they will take up serpents; and if they drink any deadly thing, it will in no way hurt them; they will lay hands on the sick, and they will recover.
Luke 10:17
17 The seventy returned with joy, saying, “Lord, even the demons are subject to us in your name!”
