Sea of Suf
In Mandaean cosmology, the Sea of Suf (or Sea of Sup, ) is a primordial sea in the World of Darkness. It is analogous to Tehom in the Book of Genesis. It is a great sea that the soul has to pass in the first steps of ascending, and is also considered to be the limit of worldly desire. In the Ginza Rabba
The Sea of Suf is mentioned in Right Ginza 1, 2.3, 3, 5.2, 9.1, 15.1, 15.10, 15.12, 15.18, 16.1, 16.6, and Left Ginza 2.14, often as iama rba ḏ-sup or the "Great Suf-Sea." See also

 (Hebrew cognate)

References

Water and religion
Chaos (cosmogony)
Mandaean cosmology
Ginza Rabba