It teaches God is the Creator Who acts in the lives of His creation.
As creatures of God, men are accountable to Him. God saw that “wickedness of man was great in the earth,” that “every imagintion of the thoughts of his heart was only evil continually.” God didn’t create the world and then sit back and let His creatures do whatever they pleased without intervention. “And God said unto Noah, The end of all flesh is come before Me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth.” Gen. 6:13
It teaches the responsibility of the man
God didn’t ask Noah’s wife to build the Ark. (The Bible doesn’t even give her name, or the names of Shem, Ham, and Japheth’s wives.) It was Noah to whom God commanded, “Make thee an ark of gopher wood,” for God gives authority to the man. Along with the authority comes more responsibility: “Of whom much is given, much is required.”
It teaches truth is exclusive
God provided one way of salvation from the destruction by flood. “And every living substance was destroyed which was upon the face of the ground, both man, and cattle, and the creeping things, and the fowl of the heaven; and they were destroyed from the earth: and Noah only remained alive, and they that were with him in the ark.” Gen 7:23 Likewise, there are not many roads that lead to Heaven: only one.
It teaches God is in charge of climate change
“And, behold, I, even I, do bring a flood of waters upon the earth, to destroy all flesh, wherein is the breath of life,” Gen. 6:17a, and “While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease.” Gen. 8:22
It teaches God gives man dominion over plants and animals
This is especially grating in a country like the U.S. where unborn eagles have federal protection, but not unborn humans.
It was man whom God gave the responsibility of building the ark and gathering animals and food. After the flood, God said to Noah, “And the fear of you and the dread of you shall be upon every beast of earth, and upon every fowl of the air, upon all that moveth upon the earth, and upon all fishes of the sea; into your hand are they delivered. Every moving thing that liveth shall be meat for you; even as the green herb have I given you all things.”
It teaches monogamy and “heteronormativity”
Noah and his wife, his three sons and their wives, embody the monogamous, heterosexual marriage standard. Plus, God commanded Noah to bring male and female of all flesh to keep flesh alive. “And they that went in, went in male and female of all flesh.” Gen. 7:16a Same-sex coupling is sterile, and could not have kept flesh alive.
It teaches the rainbow represents God’s justice and mercy
This meaning has been ignored, and wicked men have defiled it to symbolize and celebrate perverted acts. (Although God will keep His word not to destroy the earth and flesh through flood, He will destroy it all someday through fire.)
It teaches that God is undemocratic
Just because the vast majority—all of the human population, except for eight persons—were violent and corrupt did not mean He respected or abided by the “rule” of the majority.
It teaches the earth is the only habitat for man to live
God did not save Noah and his family by sending them to another place in the universe.
It teaches remission of sin comes through blood sacrifice.
God had commanded Noah, “Of every clean beast thou shalt take to thee by sevens,” and “Of fowls also of the air by sevens” (Gen. 7:2a & 3a) In contrast, the unclean beasts were taken by two. Why the odd number of clean beasts and fowls? After Noah and his family and the animals left the ark, we read: “And Noah built an altar unto the Lord; and took of every clean beast, and of every clean fowl, and offered burnt offerings on the altar.” Gen. 8:20 The seventh clean beast and the seventh fowl were taken to be sacrificed. The other six were the male-female pairs. The blood sacrifice of the animals was a shadow of the Ultimate Blood Sacrifice—when God the Son, Jesus Christ, the Lamb of God, would shed His blood and give His life for the remission of sin.