The sacrifice that I am comparing the popes "two doves," to is actually, "The Law of the Leper."
Lev 14:1 And the LORD spake unto Moses, saying,
Lev 14:2 This shall be the law of the leper in the day of his cleansing: He shall be brought unto the priest:
Lev 14:3 And the priest shall go forth out of the camp; and the priest shall look, and, behold, if the plague of leprosy be healed in the leper;
Lev 14:4 Then shall the priest command to take for him that is to be cleansed two birds alive and clean, and cedar wood, and scarlet, and hyssop:
Lev 14:5 And the priest shall command that one of the birds be killed in an earthen vessel over running water:
Lev 14:6 As for the living bird, he shall take it, and the cedar wood, and the scarlet, and the hyssop, and shall dip them and the living bird in the blood of the bird that was killed over the running water:
Lev 14:7 And he shall sprinkle upon him that is to be cleansed from the leprosy seven times, and shall pronounce him clean, and shall let the living bird loose into the open field.
Lev 14:8 And he that is to be cleansed shall wash his clothes, and shave off all his hair, and wash himself in water, that he may be clean: and after that he shall come into the camp, and shall tarry abroad out of his tent seven days.
Lev 14:9 But it shall be on the seventh day, that he shall shave all his hair off his head and his beard and his eyebrows, even all his hair he shall shave off: and he shall wash his clothes, also he shall wash his flesh in water, and he shall be clean.