Adam Clarke on Matthew 9:34

He casteth out devils through the prince of the devils - This verse is wanting in both the Greek and Latin of the C. Bezae, in another copy of the Itala, and in Hilary and Juvencus. But see on Mat 12:24 (note).

It is a consummate piece of malice to attribute the works of God to the devil. Envy cannot suffer the approbation which is given to the excellencies of others. Those whose hearts are possessed by this vice speak the very language of the devil. Calumny is but a little distance from envy. Though all persons may not have as much envy as the Pharisees, yet they should fear having some degree of it, as all have the principle from whence it proceeds, viz. sin.