Numbers 15:27

15:27 “‘If any person ¹  sins unintentionally, then he must bring a yearling female goat for a purification offering.

Numbers 31:20

31:20 You must purify each garment and everything that is made of skin, everything made of goat’s hair, and everything made of wood.” ² 

Numbers 32:23

32:23 “But if you do not do this, then look, you will have sinned ³  against the Lord. And know that your sin will find you out.

[15:27]  ¹ tn The Hebrew text hasוְאִם־נֶפֶשׁ אַחַת (vÿ’im-nefesh ’akhat), sometime translated “and if any soul.” But the word describes the whole person, the soul in the body; it refers here to the individual who sins.

[31:20]  ² sn These verses are a reminder that taking a life, even if justified through holy war, still separates one from the holiness of God. It is part of the violation of the fallen world, and only through the ritual of purification can one be once again made fit for the presence of the Lord.

[32:23]  ³ tn The nuance of the perfect tense here has to be the future perfect.