He made the altar of burnt offering of acacia wood. It was square. Its length was five cubits, 38:1 A cubit is the length from the tip of the middle finger to the elbow on a man’s arm, or about 18 inches or 46 centimetres. its width was five cubits, and its height was three cubits.
Genesis 4:3
As time passed, Cain brought an offering to the LORD from the fruit of the ground.
Genesis 4:4
Abel also brought some of the firstborn of his flock and of its fat. The LORD respected Abel and his offering,
Genesis 4:5
but he didn’t respect Cain and his offering. Cain was very angry, and the expression on his face fell.
Genesis 6:14
Make a ship of gopher wood. You shall make rooms in the ship, and shall seal it inside and outside with pitch.
Genesis 8:20
Noah built an altar to the LORD, and took of every clean animal, and of every clean bird, and offered burnt offerings on the altar.