John 4:48
Jesus said to him, “Unless you people see signs and wonders, you will never believe.”

Matthew 12:38-39
Then some of the scribes and Pharisees said to Him, “Teacher, we want to see a sign from You.” / Jesus replied, “A wicked and adulterous generation demands a sign, but none will be given it except the sign of the prophet Jonah.

Matthew 16:1-4
Then the Pharisees and Sadducees came and tested Jesus by asking Him to show them a sign from heaven. / But He replied, “When evening comes, you say, ‘The weather will be fair, for the sky is red,’ / and in the morning, ‘Today it will be stormy, for the sky is red and overcast.’ You know how to interpret the appearance of the sky, but not the signs of the times. ...

Mark 8:11-12
Then the Pharisees came and began to argue with Jesus, testing Him by demanding from Him a sign from heaven. / Jesus sighed deeply in His spirit and said, “Why does this generation demand a sign? Truly I tell you, no sign will be given to this generation.”

Luke 11:29-30
As the crowds were increasing, Jesus said, “This is a wicked generation. It demands a sign, but none will be given it except the sign of Jonah. / For as Jonah was a sign to the Ninevites, so the Son of Man will be a sign to this generation.

John 2:18
On account of this, the Jews demanded, “What sign can You show us to prove Your authority to do these things?”

John 6:30
So they asked Him, “What sign then will You perform, so that we may see it and believe You? What will You do?

Acts 17:18-21
Some Epicurean and Stoic philosophers also began to debate with him. Some of them asked, “What is this babbler trying to say?” Others said, “He seems to be advocating foreign gods.” They said this because Paul was proclaiming the good news of Jesus and the resurrection. / So they took Paul and brought him to the Areopagus, where they asked him, “May we know what this new teaching is that you are presenting? / For you are bringing some strange notions to our ears, and we want to know what they mean.” ...

Romans 1:16
I am not ashamed of the gospel, because it is the power of God for salvation to everyone who believes, first to the Jew, then to the Greek.

Galatians 3:5
Does God lavish His Spirit on you and work miracles among you because you practice the law, or because you hear and believe?

Hebrews 2:4
and was affirmed by God through signs, wonders, various miracles, and gifts of the Holy Spirit distributed according to His will.

Exodus 7:9-10
“When Pharaoh tells you, ‘Perform a miracle,’ you are to say to Aaron, ‘Take your staff and throw it down before Pharaoh,’ and it will become a serpent.” / So Moses and Aaron went to Pharaoh and did just as the LORD had commanded. Aaron threw his staff down before Pharaoh and his officials, and it became a serpent.

Deuteronomy 13:1-2
If a prophet or dreamer of dreams arises among you and proclaims a sign or wonder to you, / and if the sign or wonder he has spoken to you comes about, but he says, “Let us follow other gods (which you have not known) and let us worship them,”

1 Kings 13:3-5
That day the man of God gave a sign, saying, “The LORD has spoken this sign: ‘Surely the altar will be split apart, and the ashes upon it will be poured out.’” / Now when King Jeroboam, who was at the altar in Bethel, heard the word that the man of God had cried out against it, he stretched out his hand and said, “Seize him!” But the hand he stretched out toward him withered, so that he could not pull it back. / And the altar was split apart, and the ashes poured out, according to the sign that the man of God had given by the word of the LORD.

2 Kings 20:8-11
Now Hezekiah had asked Isaiah, “What will be the sign that the LORD will heal me and that I will go up to the house of the LORD on the third day?” / And Isaiah had replied, “This will be a sign to you from the LORD that He will do what He has promised: Would you like the shadow to go forward ten steps, or back ten steps?” / “It is easy for the shadow to lengthen ten steps,” answered Hezekiah, “but not for it to go back ten steps.” ...