Isaiah 57:3 New King James Version (NKJV)

Matthew 16:4 New King James Version (NKJV)

⁴ A wicked and adulterous generation seeks after a sign, and no sign shall be given to it except the sign of ^[a]the prophet Jonah.” And He left them and departed.

Mark 8:38 New King James Version (NKJV)

³⁸ For whoever is ashamed of Me and My words in this adulterous and sinful generation, of him the Son of Man also will be ashamed when He comes in the glory of His Father with the holy angels.”

Luke 11:29-32 New King James Version (NKJV)

Seeking a Sign

²⁹ And while the crowds were thickly gathered together, He began to say, “This is an evil generation. It seeks a sign, and no sign will be given to it except the sign of Jonah ^[a]the prophet. ³⁰ For as Jonah became a sign to the Ninevites, so also the Son of Man will be to this generation. ³¹ The queen of the South will rise up in the judgment with the men of this generation and condemn them, for she came from the ends of the earth to hear the wisdom of Solomon; and indeed a greater than Solomon is here. ³² The men of Nineveh will rise up in the judgment with this generation and condemn it, for they repented at the preaching of Jonah; and indeed a greater than Jonah is here.

John 4:48 New King James Version (NKJV)

⁴⁸ Then Jesus said to him, “Unless you people see signs and wonders, you will by no means believe.”