Deuteronomy 21:6

21:6 and all the elders of that city nearest the corpse ¹  must wash their hands over the heifer whose neck was broken in the valley. ² 

Deuteronomy 21:4

21:4 and bring the heifer down to a wadi with flowing water, ³  to a valley that is neither plowed nor sown. ⁴  There at the wadi they are to break the heifer’s neck.

[21:6]  ¹ tn Heb “slain [one].”

[21:6]  ² tn Heb “wadi,” a seasonal watercourse through a valley.

[21:4]  ³ tn The combination “a wadi with flowing water” is necessary because a wadi (נַחַל, nakhal) was ordinarily a dry stream or riverbed. For this ritual, however, a perennial stream must be chosen so that there would be fresh, rushing water.

[21:4]  ⁴ sn The unworked heifer, fresh stream, and uncultivated valley speak of ritual purity – of freedom from human contamination.