Our FATHER, YAHWEH, demonstrates HIS power to perform miracles as we preach HIS news of deliverance to the world. Whether folks believe you or not will depend on if their hearts are not hard towards GOD
Exodus 7:8-13 Then the Lord spoke to Moses and Aaron, saying, “When Pharaoh speaks to you, saying, ‘Show a miracle for yourselves,’ then you shall say to Aaron, ‘Take your rod and cast it before Pharaoh, and let it become a serpent.’ ” So Moses and Aaron went in to Pharaoh, and they did so, just as the Lord commanded. And Aaron cast down his rod before Pharaoh and before his servants, and it became a serpent. But Pharaoh also called the wise men and the sorcerers; so the magicians of Egypt, they also did in like manner with their enchantments. For every man threw down his rod, and they became serpents. But Aaron’s rod swallowed up their rods. And Pharaoh’s heart grew hard, and he did not heed them, as the Lord had said.
https://bible.com/bible/114/exo.7.8-13.NKJV
Mark 16:15-18 And He said to them, “Go into all the world and preach the gospel to every creature. He who believes and is baptized will be saved; but he who does not believe will be condemned. And these signs will follow those who believe: In My name they will cast out demons; they will speak with new tongues; they will take up serpents; and if they drink anything deadly, it will by no means hurt them; they will lay hands on the sick, and they will recover.”
https://bible.com/bible/114/mrk.16.15-18.NKJV
Matthew 4:23-25 And Jesus went about all Galilee, teaching in their synagogues, preaching the gospel of the kingdom, and healing all kinds of sickness and all kinds of disease among the people. Then His fame went throughout all Syria; and they brought to Him all sick people who were afflicted with various diseases and torments, and those who were demon-possessed, epileptics, and paralytics; and He healed them. Great multitudes followed Him—from Galilee, and from Decapolis, Jerusalem, Judea, and beyond the Jordan.
https://bible.com/bible/114/mat.4.23-25.NKJV
Romans 15:18-19 For [of course] I will not venture (presume) to speak thus of any work except what Christ has actually done through me [as an instrument in His hands] to win obedience from the Gentiles, by word and deed, [Even as my preaching has been accompanied] with the power of signs and wonders, [and all of it] by the power of the Holy Spirit. [The result is] that starting from Jerusalem and as far round as Illyricum, I have fully preached the Gospel [faithfully executing, accomplishing, carrying out to the full the good news] of Christ (the Messiah) in its entirety.
https://bible.com/bible/8/rom.15.18-19.AMPC