Theophylact of Ohrid
Catena Aurea · Lukasevangelium 11
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. For as Jonas was a sign unto the Ninevites, so shall also the Son of man be to this generation. 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; and, behold, a greater than Solomon is here. 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.
Or because the South is praised in Scripture as warm and life-giving, therefore the soul reigning in the south, that is, in all spiritual conversation, comes to hear the wisdom of Solomon, the Prince of peace, the Lord our God, (i. e. is raised up to contemplate Him,) to whom no one shall come except he reign in a good life. But He brings next an example from the Ninevites, saying, The men of Nineveh shall rise up in judgment with this generation, and shall condemn it.