Hebrews 9:22

The exception to which the writer alluded was God’s provision for the poor in Israel. He allowed them to bring a flour offering in place of an animal if they could not afford two doves (Leviticus 5:11; cf. Numbers 16:46; Numbers 31:22-23; Numbers 31:50). As a principle, God required the shedding of blood (death) for forgiveness under the Mosaic Law. The Israelites saw this most clearly on the Day of Atonement, but every animal sacrifice reminded them of it. The principle expressed is true of the New Covenant as well. Blood (death) is essential for decisive purgation.