Susi was the father of Gaddi, who represented the tribe of Manasseh among the twelve spies sent to reconnoiter Canaan. Like other fathers named in this roster, Susi serves to establish tribal legitimacy and genealogical identity. Some scholars have questioned the text, noting difficulties in establishing etymological connections, but the name remains part of the traditional wilderness narrative. The Greek Septuagint renders it as 'Sousei,' reflecting attempts to preserve Hebrew names in Greek dress.