A change of eras and the certainty of destruction. The ark was ready— and its completion was the culmination of 120 years of construction. Day after day Noah and his sons had toiled. Day after day that had built in accordance with God’s will. They were the last remnant living in the midst of a world that wanted nothing to do with them. The world made a mockery of the ark; Noah and his family were radicals, beyond the realm of restoration.
For 120 years Noah had endeavored to do as God had commanded him. The memory of that day 120 years ago when God had first commanded him to begin construction... that memory, however faint it might have been, must have immediately been recalled to his mind the moment that God (once again) spoke to him:
Then the LORD said to Noah, "Enter the ark, you and all your household, for you alone I have seen to be righteous before Me in this time. (Genesis 7:1)After 120 years of work, the moment had finally come. Despite any attempt Noah might have made as a preacher of righteousness, only his wife, his sons, and his sons’ wives were willing to board the ark. They would be saved, rescued by a God of great mercy. They would not be rescued for their own works, but because of their faith. Because of their trust in God. The climax of Noah’s life was on the horizon. And while it meant the destruction of the entire earth was ever so near, it also meant that the earth would soon be cleansed.
The Time Comes to Enter the Ark (Part 2) - Genesis 7:1
Summary of Genesis 6
Noah's Obedience - Genesis 6:22
State Of The World (2469 BC): 120 Years Before The Flood - Genesis 6:3
God's Covenant With Noah: Promised - Genesis 6:18