A wicked and morally unfaithful generation craves a sign, but no sign shall be given to it except the sign of the prophet Jonah. Then He left them and went away. [Jonah 3:4, 5.]
Now the Lord had prepared and appointed a great fish to swallow up Jonah. And Jonah was in the belly of the fish three days and three nights. [Matt. 12:40.]
For whoever is ashamed [here and now] of Me and My words in this adulterous (unfaithful) and [preeminently] sinful generation, of him will the Son of Man also be ashamed when He comes in the glory (splendor and majesty) of His Father with the holy angels.
And He groaned and sighed deeply in His spirit and said, Why does this generation demand a sign? Positively I say to you, no sign shall be given this generation.
But since they kept opposing and abusing and reviling him, he shook out his clothing [against them] and said to them, Your blood be upon your [own] heads! I am innocent [of it]. From now on I will go to the Gentiles (the heathen). [Acts 13:46.]
Though they bring up their children, yet will I bereave them so that not a man shall be left; yes, woe also to them when I look away and depart from them!
And [Peter] solemnly and earnestly witnessed (testified) and admonished (exhorted) with much more continuous speaking and warned (reproved, advised, encouraged) them, saying, Be saved from this crooked (perverse, wicked, unjust) generation.