Leviticus 15:13-15

13 “And when the one with a discharge is cleansed of his discharge, then a he shall count for himself seven days for his cleansing, and wash his clothes. And he shall bathe his body in fresh water and shall be clean. 14 And on the eighth day he shall take two b turtledoves or two pigeons and come before the  Lord to the entrance of the tent of meeting and give them to the priest. 15 And the priest shall use them, c one for a sin offering and the other for a burnt offering. d And the priest shall make atonement for him before the  Lord for his discharge.

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