Adam Clarke on John 7:12

Some said, He is a good man - The multitude were divided in their opinions concerning him: those who knew him best said, He is a good man. Those who spoke according to the character given him by the priests, etc., said, Nay; but he deceiveth the people. Those who spoke evil of him spoke out, because they had the rulers on their side; but those who spoke good of him were obliged to do it in private, because they feared these rulers. Calumny and slander are among the privileged orders; they stalk abroad with their thousand brazen mouths, and blast the reputation of the followers of God. Benevolence and candor are only on sufferance; and a whisper in secret is the most they are permitted to give in behalf of Christ and his followers, whose laws and maxims condemn a vicious world, and goad it to revenge.