God observed all this corruption in the world, for everyone on earth was corrupt. So God said to Noah, “I have decided to destroy all living creatures, for they have filled the earth with violence.
Yes, I will wipe them all out along with the earth! “Build a large boat from cypress wood and waterproof it with tar, inside and out. Then construct decks and stalls throughout its interior. Make the boat 450 feet long, 75 feet wide, and 45 feet high. Leave an 18-inch opening below the roof all the way around the boat. Put the door on the side, and build three decks inside the boat—lower, middle, and upper.
“Look! I am about to cover the earth with a flood that will destroy every living thing that breathes. Everything on earth will die. But I will confirm my covenant with you. So enter the boat—you and your wife and your sons and their wives. Bring a pair of every kind of animal—a male and a female—into the boat with you to keep them alive during the flood. Pairs of every kind of bird, and every kind of animal, and every kind of small animal that scurries along the ground, will come to you to be kept alive. And be sure to take on board enough food for your family and for all the animals.”
Genesis 6 : 12 – 21 (New Living Translation)
“God told Noah his purpose to destroy the wicked world by water. The secret of the Lord is with them that fear him, Psalm 25:14. It is with all believers, enabling them to understand and apply the declarations and warnings of the written word.
God chose to do it by a flood of waters, which should drown the world. As he chooses the rod with which he corrects his children, so he chooses the sword with which he cuts off his enemies. God established his covenant with Noah. This is the first place in the Bible where the word ‘covenant’ is found; it seems to mean,
1. The covenant of providence; that the course of nature shall be continued to the end of time.
2. The covenant of grace; that God would be a God to Noah, and that out of his seed God would take to himself a people.
God directed Noah to make an ark. This ark was like the hulk of a ship, fitted to float upon the waters. It was very large, half the size of St. Paul’s cathedral, and would hold more than eighteen of the largest ships now used. God could have secured Noah without putting him to any care, or pains, or trouble; but employed him in making that which was to be the means to preserve him, for the trial of his faith and obedience.
Both the providence of God, and the grace of God, own and crown the obedient and diligent. God gave Noah particular orders how to make the ark, which could not therefore but be well fitted for the purpose. God promised Noah that he and his family should be kept alive in the ark.
What we do in obedience to God, we and our families are likely to have the benefit of. The piety of parents gets their children good in this life, and furthers them in the way to eternal life, if they improve it.”#
#Taken From Matthew Henry’s Concise Commentary.