1 Corinthians 1:22

Then he gave a miraculous sign the same day, saying, “This is the miraculous sign which Yahweh has spoken, ‘Behold, the altar shall be torn apart and the ashes which are on it shall be poured out.’”

Then some of the scribes and Pharisees answered and said to Him, “Teacher, we want to see a sign from You.”

“Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit,

So Jesus said to him, “Unless you people see signs and wonders, you will never believe.”