Scribes and Pharisees request a sign

Matt 12:38 Then certain of the scribes and of the Pharisees answered, saying, Master, we would see a sign from thee. 39 But he answered and said unto them, An evil and adulterous generation seeketh after a sign [1]; and there shall no sign be given to it, but the sign of the prophet Jonas: Luke 11:2429 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.
Matt 12:40 For as Jonas was three days and three nights in the whale's belly [2] ; so shall the Son of man be three days and three nights in the heart of the earth. Luke 11:30 For as Jonas was a sign unto the Ninevites, so shall also the Son of man be to this generation.
Matt 12:41 The men of Nineveh shall rise in judgment with this generation, and shall condemn it: because they repented at the preaching of Jonas; and, behold, a greater than Jonas is here. Luke 11:32 [3] The men of Nineve shall rise up in the judgment with this generation, and shall condemn it: for they repented at the preaching of Jonas; and, behold, a greater than Jonas is here.
Matt 12:42 The queen of the south shall rise up in the judgment with this generation, and shall condemn it: for she came from the uttermost parts of the earth to hear the wisdom of Solomon [4]; and, behold, a greater than Solomon is here. Luke 11:31 The queen of the south shall rise up in the judgment with the men of this generation, and condemn them: for she came from the utmost parts of the earth to hear the wisdom of Solomon [4]; and, behold, a greater than Solomon is here.
Matt 12:43 When the unclean spirit is gone out of a man, he walketh through dry places, seeking rest, and findeth none. 44 Then he saith, I will return into my house from whence I came out; and when he is come, he findeth it empty, swept, and garnished. Luke 11:24 When the unclean spirit is gone out of a man, he walketh through dry places, seeking rest; and finding none, he saith, I will return unto my house whence I came out. 25 And when he cometh, he findeth it swept and garnished.
Matt 12:45 Then goeth he, and taketh with himself seven other spirits more wicked than himself, and they enter in and dwell there: and the last state of that man is worse than the first. Even so shall it be also unto this wicked generation. Luke 11:26 Then goeth he, and taketh to him seven other spirits more wicked than himself; and they enter in, and dwell there: and the last state of that man is worse than the first.

Luke 11:27 And it came to pass, as he spake these things, a certain woman of the company lifted up her voice, and said unto him, Blessed is the womb that bare thee, and the paps which thou hast sucked. 28 But he said, Yea rather, blessed are they that hear the word of God, and keep it.

[1]The generation that seeks a sign is also mentioned in Mark 8:12 and Matthew 16:2.

[2]Matthew is talking about Jonah living in the belly of a whale (Jonah 1:12-2:10) as the sign of Jonah, but Luke is referring to the message that Jonah brought to the Nineveh (Jonah 3). These are distinct. The sign of Jonas is also mentioned in Matthew 16:4 and John 21:15-17.

[3]Luke has reversed Matthew's order of the "Nineve" and "queen of the south" verses.

[4]1 Kings 10:1 And when the queen of Sheba heard of the fame of Solomon concerning the name of the Lord, she came to prove him with hard questions.