On the very same day Noah and Shem and Ham and Japheth, the sons of Noah, and Noah's wife and the three wives of his sons with them, entered the ark (Genesis 7:13)On the day that the storm clouds broke open— on the day that the water burst forth from the ground— on that very same day, Noah's household and the animals entered the ark.
For 120 years of Noah's life, everything had been building up to this climatic moment— everything had been building up to the moment in which God would send the flood. God had spoken these words to Noah 120 years ago, "Behold, I, even I am bringing the flood of water upon the earth..." (Genesis 6:17). Now these words were closer than ever to their fulfillment.
And why was this flood coming? Why was such great devastation needed? For this reason: the LORD saw that the wickedness of man was great on the earth, and that every intent of the thoughts of his heart was only evil continually. (Genesis 6:5)
Before entering the ark, perhaps Noah glanced off into the distance and saw a city (perhaps The City of Enoch) or a small village. Such settlements were filled with people who had chosen to ignore God. People who refused to repent because they loved their sin. People who had just moments left to live and yet refused to come to God. They were people captivated by the deceitfulness of sin.
And then perhaps Noah glanced back at the ark, which he had seemingly spent his whole life building. It was there that his confidence lie. It was there that his hope lie. He trusted in God alone. God told him to build and ark. God told him that the flood was coming. Now the time had finally come. The flood was either coming, or it was not. God was either true to His word, or a liar.
Noah's Timely Entry (Part 2) - Genesis 7:13-15
The Long Expected Rain (Part 1) - Genesis 7:10-12
Genesis 5:29 - Noah's Name: Its Meaning and Significance
State of the World (2349 BC): The Flood (Part 1) - Genesis 7:11
A Short Account of the Ark's Final Preparation - Genesis 7:6-9