John 8:49 - Matthew Poole's English Annotations on the Holy Bible

I have not a devil; that is, I am not possessed with an evil spirit, as you blaspheme; or, (as others think), I am not mad, I speak the words of truth and soberness, (for it is said, that the Jews held an opinion, That all who were distracted were influenced by all evil spirit, and had a devil). It is true in both senses, Christ had no devil. He did nothing that he did, but for the honour of his Father; this was but a term of scandal and reproach they cast upon Christ. In the mean time it must be observed, with how much meekness the Lamb of God received these most unworthy reproaches cast upon him; that we may learn to behave ourselves in like manner under such temptations.