A Midrash noted that God commanded the Israelites to perform certain precepts with similar material from trees: God commanded that the Israelites throw cedar wood and hyssop into the Red Heifer mixture of and use hyssop to sprinkle the resulting waters of lustration in God commanded that the Israelites use cedar wood and hyssop to purify those stricken with skin disease in and in Egypt God commanded the Israelites to use the bunch of hyssop to strike the lintel and the two side-posts with blood in