Numbers 19:4

And. Hebrew, "And Eleazar, the priest, shall take part of her blood with his finger." He looked from the pile of wood, where he was standing, towards the west, and sprinkled the blood, and wiping his fingers upon the skin of the cow, waiting till the fire was kindled, before he opened her belly; he then threw into the fire the cedar-wood, &c. (Drusius) --- Others believe that this last ceremony was performed by some one else, (ver. 7,) as it is not clear that Eleazar became unclean. His being substituted instead of Aaron, might shew that Christ would institute a new priesthood.