In Acts 19:13-16 some Jews tried to cast out demons in Jesus’ name.
The Bible says:
One day the evil spirit answered them, “Jesus I know, and Paul I know about, but who are you?” Then the man who had the evil spirit jumped on them and overpowered them all. He gave them such a beating that they ran out of the house naked and bleeding. (Acts 19:15-16 NIV)
Those Jews tried to imitate Paul’s ministry, but God didn’t tell them to do that.
We can bring trouble to ourselves by trying to copy others without hearing from God.
When God calls you to a ministry, whether it’s preaching or delivering others from demons, He will enable you to do it and protect you. He will give you all the instructions you need and help you bear the difficulties that come with it.
Always seek God’s guidance before stepping into ministry!