Adam Clarke's Commentary on the Bible - John 12:31
Now is the judgment of this world - The judgment spoken of in this place is applied by some to the punishment which was about to fall on the Jewish people for rejecting Christ. And the ruler or prince, ὁ αρχων , of this world, is understood to be Satan, who had blinded the eyes of the Jews, and hardened their hearts, that they might not believe on the Son of God; but his kingdom, not only among the Jews, but in all the world, was about to be destroyed by the abolition of idolatry and the... read more
Adam Clarke's Commentary on the Bible - John 12:30
This voice came not because of me, but for your sakes - Probably meaning those Greeks who had been brought to him by Philip and Andrew. The Jews had frequent opportunities of seeing his miracles, and of being convinced that he was the Messiah; but these Greeks, who were to be a first fruits of the Gentiles, had never any such opportunity. For their sakes, therefore, to confirm them in the faith, this miraculous voice appears to have come from heaven. read more