1 Kings 2:40

And Shimei arose and saddled his ass [not necessarily himself. Qui facit per alium, facit per se. Matthew Henry thinks Shimei did it himself for the sake of secresy. Many expositors also think that he went by night. The text rather suggests the idea that both the going and the return were perfectly open and undisguised] and went to Gath. [It is impossible to avoid the question, What can have led to this infatuated disregard of his oath and life? Now his perversity may of course have been judicial— quos Dens vult perdere, prius dementat— but as to the means which led to this issue, it is enough if we may believe he had been dared to it either by his servants or others. The fierce Benjamite would naturally be galled to the quick by the thought that his slaves could thus openly set him at defiance; he may have heard from those who came from Gath that they were exulting over him; and he may have resolved at all hazards to teach them a lesson. He cannot have forgotten either Solomon's explicit warning or his own solemn oath (verse 42); he must have gone to Gath with his eyes open, and nothing but a great provocation, such as mockery and defiance, will account for his going.] And Shimei went and brought his servants from Gath.