NET
20 Noah built an altar to the Lord. He then took some of every kind of clean animal and clean bird and offered burnt offerings on the altar.
Darby
20 And Noah built an altar to Jehovah; and took of every clean animal, and of all clean fowl, and offered up burnt-offerings on the altar.
KJV
20 And Noah builded an altar unto the LORD; and took of every clean beast, and of every clean fowl, and offered burnt offerings on the altar.