In Mandaeism, manda (Classical Mandaic: ࡌࡀࡍࡃࡀ) is the concept of gnosis or spiritual knowledge. Mandaeans stress salvation of the soul through secret knowledge (gnosis) of its divine origin. Mandaeism "provides knowledge of whence we have come and whither we are going."
The Mandaeans speak an Eastern Aramaic language known as Mandaic. The name 'Mandaean' comes from the Aramaicmanda, meaning knowledge. Within the Middle East, but outside their community, the Mandaeans are more commonly known as the صُبَّةṢubba (singular: Ṣubbī), or as Sabians (الصابئة, al-Ṣābiʾa). The term Ṣubba is derived from an Aramaic root related to baptism. The term Sabians derives from the mysterious religious group mentioned three times in the Quran. The name of this unidentified group, which is implied in the Quran to belong to the "People of the Book" (ahl al-kitāb), was historically claimed by the Mandaeans as well as by several other religious groups in order to gain legal protection (dhimma) as offered by Islamic law. Occasionally, Mandaeans are also called "Christians of Saint John", in the belief that they were a direct survival of the Baptist's disciples. Further research, however, indicates this to be a misnomer, as Mandaeans consider Jesus to be a false prophet.