First of all, I am sorry for your loss of your father and daughter. I was surprised to read that as I had a similar experience many years ago. I lost my father to cancer, and only a few short months later I lost my daughter as well. I remember the same situation in which I prayed for healing along with my family, yet, it did not come. I struggled with this for a very long time, living my way through a very self destructive period of life, until I finally was drawn back to Christ through the grace of God.
That is a struggle that never goes away, but I agree that it is about realizing that God is sovereign over all things, and nothing happens outside of His control.
In regards to the documentary, I am a cessationist myself as they were discussing in regards to the Apostolic gifts we see in the New Testament. The belief of cessationists is that the Apostolic gifts are not in normative operation as we saw in the New Testament. That is what they are speaking to in the American Gospel documentary. That does not mean that I believe God does not work miracles anymore. He very rightly can, and I believe does, work miracles today. However, the kind of miraculous abilities that were given to the Apostles are not in operation anymore. The Holy Spirit still works within us and through us, but not give us the power to raise people from the dead, speak in tongues, heal people instantly by touching them, or otherwise.
Does God still heal today? Absolutely He does…but…He also does not sometimes as you and I, and many others, well know. That is where our faith really comes to bear is those situations in which God does not heal when we wish He would. It can be very difficult to understand why God heals some and not others. But this is where our trust in Him and His sovereignty over every situation is so important. He will do what is right as we are told in Genesis 18:25, even if that is sometimes hard to understand, He knows more than we do and does that which is right and that which brings Him glory.
Should we pray for healing for people who are suffering? Absolutely we should. As a cessationist, I do not believe that God grants the power to do these things to people as we saw in the book of Acts anymore, however, I believe that God works His power in miraculous things every day. The first miracle I come to every time is this…I’m saved. A complete and total wretch, dead in my sins against a Holy God, is not going to be cast into hell for eternity because of what Christ did. Thats a miracle of healing itself that any believer comes to faith in Christ. We have all been raised from our deadness in sin, who know Christ and put their faith in Him. I know for a fact that, although the Holy Spirit did the work in my heart, there were many who had prayed for me in those dark times, and I am eternally grateful to them for their prayers, as I am to my Savior for answering them.
Have people been healed of diseases? Yes they have. These kinds of things do happen, and I believe that prayer is a huge part of things like that. We most certainly should pray about these things and lift people up to God in prayer for healing. He will always answer our prayers. The problem is that we always assume that His answer will be what we want. Sometimes it is not. That can be very difficult, but He calls us to trust in Him in even the darkest times. As Proverbs 3:5-6 tells us, “Trust in the Lord with all your heart and lean not on your own understanding; in all your ways acknowledge Him and He will direct your paths.”
If we trust in Him, He will guide and direct us in all that we do. Sometimes we will face situations in our lives that may seem almost to be impossible, but nothing is impossible to Him. If we trust Him in all things, “with all our heart,” and do not try to simply go by our own skewed understanding of things, what He tells us is that He will direct us.
Should we pray for this world, ourselves, and those around us? Jesus Christ did, and we should absolutely follow His example. Will we always get the answer we hope for? No. But we will get the Savior that we hope for and long for, and in whom we can trust, even when it hurts. 1 Thessalonians 5:17 tells us to “pray without ceasing.” We never know what effect our prayers will have upon a person or a situation, and we should always see it as our first reaction to bring such things up to God in prayer. He will hear us, and He will do what is right.
I hope that helps to answer your question David. If you have any other questions please do not hesitate to ask them. May God grant you wisdom and understanding as you grow in your relationship with Him, God bless you and thank you.