Saving faith comes not from miracles but from hearing the word of God Rom 10:17 What does John Calvin have to do with what Jesus said of Israel? Jesus called them an evil and adulterous generation. Do you want to be associated with that kind?
Jesus said, "Except ye see signs and wonders, ye shall not believe." Some Israelites did believe. There was a remnant among the people. Jesus preached and ministered, and the apostles did after him. There were many thousands who believed in Christ. Some of them believed after they saw miracles, but they had to have something to believe. They believed in the person of Christ and His message. Some did not believe or did not continue in faith, even though they'd seen miracles. But others saw miracles, believed, and continued in faith.
Paul said that God had chosen the foolishness of preaching to save them that believe. But he also said that his preaching was not with enticing words of man's wisdom, but in the demonstration of the Spirit and of power. He said that with signs and wodnder, from Jerusalem round about unto Illyricum, he had fully preached the Gospel of Christ.
In the case of Sergius Paulus he believed after he saw the miracle, being astonished at the teaching of the Lord. He'd heard Paul teach. He'd heard the Gospel, and he believed it, after he saw the miracle.
Signs are for the Jews but Gentiles seek after knowledge.
The Jews require a sign. This was what they wanted. Gentiles wanted knowledge. 'But unto them that believe, Christ the power of God and the wisdom of God', as Paul wrote in that passage. Paul and Barnabas did miracles among the Gentiles, too, as we read in Acts 13-15. In Acts 15, they reported the miracles they had done among the Gentiles.
Jesus came specifically to Israel. Israel rejected Him even though He proved His authority with signs and wonders. Our authority is in the word of God.
If our authority is in the word of God, then we must accept what the word of God says about signs, wonders, and gift of the Holy Spirit, and not try to argue it away with man-made arguments about the word of God and the role of signs, wonders, and miracles.
The Holy Spirit ministers the word to the hearts of men through the word of God. So the Philippian jailer was Jewish? What of the Ethiopian eunuch?
Wasn't Philip (likely) Jewish? Paul was a Hebrew also.
I'm not the one saying Gentiles can't minister to Gentiles. I believe they can, and if God so desires, they can do miracles. You were the one with the specious argument that Jews were present when tongues were spoke. In the accounts we read, a Jew is present when a Gentile believes the Gospel, too. That doesn't mean Gentiles couldn't evangelize. We also see that they can speak in tongues. I Corinthians 12 describes the readers as former idolators, not former Jews, and lists divers tongues among the gifts that operated among them.
Without tongues the church would be empty. They come not to hear the word of God proclaimed but to see the show, to be entertained.
This is nonsense. Do you ever go to churches that believe in speaking in tongues? There might be some entertainment focused church where tongues is center-stage that you can find. But most churches I've been to that believe in speaking in tongues place much more emphasis on Bible teaching. Actually, Barna did a study a while back that surveyed people to see if they actually believed in Biblical doctrines that their denominations supposedly taught. He had AOG parsed out from Pentecostal in his study, and those two groups of evangelicals ranked highest. He had a study out several years ago that showed that Charismatics knew the Bible better than most evangelicals, based on the criteria of the study.
A lot of churches that believe in speaking in tongues may not see it in every service, and maybe some meetings there will be a tongue and interpretation, and at other services not. That's the say it was when I was growing up. I didn't grow up in the kind of church where everyone speaks in tongues at the same time, though. I realize there are some churches that are disorderly. One thing to keep in mind is that the church in Corinth was disorderly, but the genuiness of their spiritual ifts is not questioned in the epistles.