Yes, Jesus did call attention to the signs and wonders in sending a message to John the Baptist, in order to confirm who Jesus is.
But something certain early church magnifiers do not mention is the part where Jesus says the poor have the Gospel preached to them, and blessed is the one not offended in Jesus.
And I offer, again, how Jesus said that to a person in doubt.
And elsewhere Jesus does say no sign will be given to certain people, except the sign of Jonah.
Also, we have how Abraham tells the rich man that the man's brothers would not believe even if one rose from the dead to talk with them.
So . . . yes, God might show signs and wonders; however, it is possible He knows they do not make the difference. And yet Jesus says if signs and wonders were shown in Sodom and Gomorrah . . . they would remain to His day.
So - I see how things work, however God has things work . . . with signs and without signs. He does not depend on either: with or without, I would say.
Do you really think the Love of Jesus was less expressed throughout the early church in the first 5 chapters of Acts ?
My point is the early church was not a mature church, right away. And at that earlier time of the early church, yes, there were signs and wonders. But the people were not mature, yet. And so, I am offering that we should not try to build things now to be like how things were while the church was new . . . not mature. We have mature people, now, including men who meet the description of 1 Timothy 3:1-10 which gives the qualifications of "a bishop".
And Peter did that wonder, of having the lame man walk, while Peter still was not a maturely sound and stable person. After all, in Galatians 2:11-13 we read how later, to my knowledge, Peter played the hypocrite, as did Barnabas . . . not what mature people would do, I would say. And yet, it does seem Barnabas, by then, was pretty mature or something like that, yet still able to do that.
So, in any case, what is really needed is all God does ***within*** us. And signs and wonders did not do that, and did not keep Peter and "even Barnabas" from playing the hypocrite.
So, we might give our main attention to what we need for God Himself to do, within us. Because even after all Peter and Barnabas did and witnessed . . . still . . .