the Jews
Matthew 12:38
Then certain of the scribes and of the Pharisees answered, saying, Master, we would see a sign from thee.
Matthew 12:39
But he answered and said unto them, An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas:
Matthew 16:1-4
1
The Pharisees also with the Sadducees came, and tempting desired him that he would shew them a sign from heaven.
2
He answered and said unto them, When it is evening, ye say, It will be fair weather: for the sky is red.
3
And in the morning, It will be foul weather to day: for the sky is red and lowring. O ye hypocrites, ye can discern the face of the sky; but can ye not discern the signs of the times?
4
A wicked and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonas. And he left them, and departed.
Mark 8:11
And the Pharisees came forth, and began to question with him, seeking of him a sign from heaven, tempting him.
Luke 11:16
And others, tempting him, sought of him a sign from heaven.
Luke 11:20
But if I with the finger of God cast out devils, no doubt the kingdom of God is come upon you.
John 2:18
Then answered the Jews and said unto him, What sign shewest thou unto us, seeing that thou doest these things?
John 4:28
The woman then left her waterpot, and went her way into the city, and saith to the men,
the Greeks
Acts 17:18-21
18
Then certain philosophers of the Epicureans, and of the Stoicks, encountered him. And some said, What will this babbler say? other some, He seemeth to be a setter forth of strange gods: because he preached unto them Jesus, and the resurrection.
19
And they took him, and brought him unto Areopagus, saying, May we know what this new doctrine, whereof thou speakest, is?
20
For thou bringest certain strange things to our ears: we would know therefore what these things mean.
21
For all the Athenians and strangers which were there spent their time in nothing else, but either to tell, or to hear some new thing.)