Genesis 8:20 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.
After Noah gets off the ark he and his family worship God with sacrifices on the altar. He knew which animals were acceptable animals to offer. He knew about how to make sacrifices. He knew that he should make sacrifices.
The worship and honoring of God is beautiful but maybe more impressive is how Noah knew all that when it wouldn’t be written till Leviticus by Moses hundreds of years later.
God taught His people before the written version was given. Parents then taught their children. The truth was passed down by parents to their children for generations.
What should you do with the truths you have been taught? Are you teaching your children?