Jesus replied, “A wicked and adulterous generation demands a sign, but none will be given it except the sign of the prophet Jonah.
Matthew 12:39. A wicked generation He does not merely charge that age with malice, but pronounces the Jews—or at least the scribes, and those who resembled them—to be a wicked nation; thus declaring that they labored under a hereditary disease of obstinacy. The word γενεά sometimes denotes an age, and sometimes a people or nation.
It is probable that these Pharisees with whom Christ is here in discourse were not the same that cavilled at him (Mat 12:24), and would not credit the signs he gave; but another set of them, who saw that there was no reason to discredit them, but would not content themselves with the signs he gave, nor admit the evidence of them, unless he would...
Commenting on Matthew 12:38-45
Then he said, I will return into my house,.... Into the land of Judea, particularly into the Scribes and Pharisees, outward professors of religion; who, notwithstanding their outward reformation, and great pretensions to holiness, are Satan's house still: he has a property in them, a claim upon them; and though he says, from whence I came out, yet he never really and properly quitted it...