Promises of Jesus:
Power over all the enemy!

The seventy-two returned with joy and said, “Lord, even the demons submit to us in Your name.” So He told them, “I saw Satan fall like lightning from heaven. Behold, I have given you authority to tread on snakes and scorpions, and over all the power of the enemy. Nothing will harm you. Nevertheless, do not rejoice that the spirits submit to you, but rejoice that your names are written in heaven.” Luke 10:17-20

Then Jesus called the Twelve together and gave them power and authority over all demons, and power to cure diseases. And He sent them out to proclaim the kingdom of God and to heal the sick. Luke 9:1-2

And these signs will accompany those who believe: In My name they will drive out demons; they will speak in new tongues; they will pick up snakes with their hands, and if they drink any deadly poison, it will not harm them; they will lay their hands on the sick, and they will be made well.” Mark 16:17-18

Then Jesus came to them and said, “All authority in heaven and on earth has been given to Me. 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 all that I have commanded you. And surely I am with you always, even to the end of the age.” Matthew 28:18-20