Then certain of the scribes and of the Pharisees answered, saying, Master, we would see a sign from thee. (12:38)

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: (12:39)

The Pharisees also with the Sadducees came, and tempting desired him that he would show them a sign from heaven. (16:1)

--Luke--

And others, tempting [him], sought of him a sign from heaven. (11:16)

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 Jonas the prophet. (11:29)

And when Herod saw Jesus, he was exceeding glad: for he was desirous to see him of a long [season], because he had heard many things of him; and he hoped to have seen some miracle done by him. (23:8)