Well, it is pretty hard to post Sciptures about ”deliverance ministries” when there are none! There is the five fold office in Ephesians 4:11, there are gifts of the Holy Spirit, in various places Romans 12:6-8; 1 Cor. 12:8-10, 28; 1 Peter 4:11 none of which are “deliverance.”
But, Jesus did do deliverance, and so did Paul in Acts 16 with the servant girl.
“She continued to do this for many days. But Paul became greatly annoyed, and turned and said to the spirit, “I command you in the name of Jesus Christ to come out of her!” And it came out of her at once.” Acts 16:18
So, deliverance is Scriptural, but a ministry? Not seeing that.
In fact, last year, I had a friend I was supposed to see, in Edmonton, who had been going through depression. She canceled, because she had been to a deliverance person, and ended up feeling much worse afterwards. Surprise, surprise! I wonder how much she had to pay for that?
Which brings me to my point, that if there is no such thing as a deliverance ministry in the Bible, and yet, someone makes you pay for it, probably not from God. I would say more an obsession with the demonic. My friend was from South America, and always got off track about demons. I don’t know how many times several of us had to show her Scriptures to dispel myths and primitive ideas which she could only have gotten growing up in the Catholic Church in South America. (Several of the friends were from there, and this is what they told me!)
So, why do I believe in deliverance? Back when I was a new Christian, little more than a year in the faith, I had my second child and sunk into post partum depression. It wasn’t long, but it was real. I went to church one Sunday and the pastor wanted people who needed to be prayed for to put up their hands. I put mine up, and I was surrounded by people praying. Now, no one cast away any oppressive demons, or shouted or did anything untoward. Instead, it was just deep, sincere prayer. I just felt walls and barriers melting away, and the depression was gone.
So, that is what a real deliverance ministry should be, IMHO. The body of Christ, praying with those who have needs! I hope that answers the questions.