This statement highlights that harvest workers need to be morally and spiritually clean.
وَفِي وُسْعِنَا بُلُوغُ هذَا ٱلْمَطْلَبِ ٱلْمُهِمِّ بِٱتِّخَاذِ ٱلْخُطُوَاتِ ٱللَّازِمَةِ لِغَسْلِنَا حَتَّى ٱلطَّهَارَةِ .‏