Acts 22:23

And as they cried out
In this furious manner:

and cast off their clothes;
either like madmen, that knew not what they did, or in order to stone him; see ( Acts 7:57 Acts 7:58 ) .

and threw dust into the air
either with their hands, or by striking the earth, and scraping it with their feet, through indignation and wrath, like persons possessed, or mad.