True miracles occurred with Jesus ministry and with the Apostles as a sign to the message and gospel.
As one Pharisees put it, “Rabbi, we know you are a teacher who has come from God. For no one could perform the miraculous signs you are doing if God were not with him“.
Today, even among very nice Christians, their message is distorted by centuries of false doctrine and tradition. This is part of the great falling away. I am not judging this as a salvation issue, but that in this time, the message that many Christians preach is unrecognizable to Heaven.
God being just, would never support false teaching with miracles lest the people become more deceived thinking that God has approved.
Sure, God can still heal and he does. But when a big wig evangelist healer comes to town with a teaching based on the Trinity and other popular misconceptions, I am afraid that there is a good possibility that no sign will be given.
If we got back to the basics and steered clear of the metaphysical gospel of ontology, the one where God died for our sins, and preach the truth about God instead (including who Jesus really is), then I believe you will see signs at times if it is true and the motive is to extend the Kingdom of God, then God will endorse it and how does he do that? Through sings and wonders. You see God wants us to be healed and doesn’t want any to perish or suffer. He also wants to demonstrate his power when the truth is shining to help people to believe in the truth.
What would the point of God physically healing someone at the hands of someone whose message is leading people astray or is enforcing false doctrine. God would be a party to helping people be deceived
If your hand causes you to stumble, cut it off. It is better for you to enter life maimed than with two hands to go into hell, where the fire never goes out. And if your foot causes you to stumble, cut it off. It is better for you to enter life crippled than to have two feet and be thrown into hell. And if your eye causes you to stumble, pluck it out. It is better for you to enter the kingdom of God with one eye than to have two eyes and be thrown into hell,
As you can see, it is better to be maimed and enter life, than whole and be cast into hell.