Matthew 12:38
Then certain of the scribes and of the Pharisees answered, saying, Teacher, we would see a sign from you.
Mark 8:11-12
And the Pharisees came forth, and began to question him, seeking of him a sign from heaven, testing him.
Luke 11:16
And others, testing him, sought of him a sign from heaven.
John 2:18
Then answered the Jews and said unto him, What sign show you unto us, seeing that you do these things?
1 Corinthians 1:22
For the Jews require a sign, and the Greeks seek after wisdom:
John 4:48
Then said Jesus unto him, Except you see signs and wonders, you will not believe.
John 6:30
They said therefore unto him, What sign do you show then, that we may see, and believe you? what do you work?
Matthew 16:1-4
The Pharisees also with the Sadducees came, and testing him desired that he would show them a sign from heaven.
Luke 11:29
And when the people were gathered thick together, he began to say, This is an evil generation: they seek a sign; and there shall no sign be given it, but the sign of Jonah the prophet.