Matthew 9:3

Verse 3. This man blasphemeth. The word blaspheme originally means to speak evil of any one, to injure by words, to blame unjustly. When applied to God, it means to speak of him unjustly, to ascribe to him acts and attributes which he does not possess, or to speak impiously or profanely. It also means to say or do anything by which his name or honour is insulted, or which conveys an impress on unfavourable to God. It means, also, to attempt to do or say a thing which belongs to him alone, or which he only can do. This is its meaning here.