It was the Creator God who initiated a work through Noah. He and his family did not volunteer. Within this is an awesome truth: Those who received grace in this context were also the only ones who were set apart from the violent, churning mass of humanity on earth, becoming the only ones to survive the Flood. Take note of when they received this grace.
Did the grace they received place them in a favorable, in fact, an enviable position? Absolutely! Grace, then, including its direct connection to God's gift of sanctification, becomes the starting point for encouraging, stimulating thoughts since this particular grace appeared in the midst of a life-threatening situation.
As the Flood story unfolds and the devastating Flood actually comes as God said it would, it becomes clear that our Creator specifically sanctified Noah and his family for deliverance before the Flood occurred. They were specially set apart to be saved from certain death in the Flood.
Do not misunderstand, though. The apostle Paul admonishes in Philippians 2:12-13:
Therefore, my beloved, as you have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling; for it is God who works in you both to will and to do for His good pleasure.
The grace God gave them was not a get-out-of-jail-free, do-nothing ticket to life. Paul's warning is not presented in the sense that we must work for salvation but that we must continue what we have begun as a result of God's calling. We must be witnesses before others of what we have received (verses 14-16). Noah and his family had to faithfully carry out responsibilities that God's grace enabled them to accomplish. They built the ark, testifying by it to those around them. They carried out their responsibilities because they lived by faith.
In like manner, we, too, have received grace and are, like Noah and his family, specifically sanctified by God for our calling into the church and for deliverance from what lies ahead. We, too, have not received a free ticket to everlasting life but bear responsibilities within our calling. We, too, must faithfully live God's way of life, glorifying Him by our conduct. God knows how to deliver us out of temptations (II Peter 2:9), but He will not necessarily draw us away from them. We are already facing such temptations, which are gradually intensifying in the pressures they apply as time moves toward Christ's return.
What does this mean to us practically? Recall the reassuring encouragement of Genesis 8:1, when God remembered Noah in the midst of the devastating Flood, even as it was killing everybody not in the ark. This is written to reassure us, not Noah, as his trial was over when this was written.
The marvel in this is not that God remembered but that Noah remembered. Through the 120 years of building the ark, then after entering the ark when the rains came, and the fountains of the great deep erupted with gigantic earthquakes, spouting huge and powerful gushes of water, still Noah did not forget God. A boiling sea pitched him and his family about like a cork. For a year and ten days, their every view was only of incessantly lurching water. How quickly would that get old?
It is truly one of the amazing realities that, in the midst of this churning maelstrom of wind and water, Noah remembered. How easy it would have been for him to be focused entirely on his own safety! In addition, the first thing he did upon leaving the ark was to sacrifice in thanks to God (Genesis 8:20). Like God, he had not forgotten.
The lesson for us is that God was right there with them as they bore the events He was accomplishing through them. Because of His presence, they were saved. It thus becomes clear that grace given in the process of sanctification is the first step toward salvation because God is with us the entire way.