They say unto him, Master
 They applied to him in a handsome and respectful manner, the better to cover their ill design: 
 this woman was taken in adultery;
 by two persons at least, who could be witnesses of it; otherwise the accusation was not legal; see ( Deuteronomy 19:15 ) ; though in the case of a wife suspected of adultery, they admitted a single witness as valid F6: 
 in the very act;
 or "in the theft itself", for adultery is a theft; it is an unlawful use of another's property; see this word used in the same sense, in Heliodor, l. 1. sect. 11.