Acts 19:12
And God wrought special miracles by the hands of Paul:
So that from his body were brought unto the sick handkerchiefs or aprons, and the diseases departed from them, and the evil spirits went out of them.
Miracles signs and wonders ought to follow the message that you preach. We are not only to preach. See Luke 10:8-9. The signs that follow us are seen in Mark 16:17-18.