30. snow water--thought to be more cleansing than common water,
owing to the whiteness of snow
(Ps 51:7;
Isa 1:18).
never so clean--Better, to answer to the parallelism of the first
clause which expresses the cleansing material, "lye:" the Arabs used
alkali mixed with oil, as soap
(Ps 73:13;
Jer 2:22).
JFB.
Picture Study Bible