Animals: Offered in Sacrifice

…while Abel brought the best portions of the firstborn of his flock. And the LORD looked with favor on Abel and his offering,

You are to take with you seven pairs of every kind of clean animal, a male and its mate; a pair of every kind of unclean animal, a male and its mate; …

Then Noah built an altar to the LORD. And taking from every kind of clean animal and clean bird, he offered burnt offerings on the altar.