For childbirth, see Leviticus 12:1–8 (note the graduated scale of purification offerings: “if she cannot afford a sheep, she shall take two turtledoves,” a detail nicely caught in Luke 2:24); for menstruation and other vaginal discharges, Leviticus 15:19–30; for various genital discharges and seminal emissions, Leviticus 15:1–18; for corpse impurity, Leviticus 21:1–3; for the red heifer, Numbers 19.