Revelations shows that we don't have much time left. Everyone who wants to overcome must do now what Noah did in his days. What did Noah do? He took his family into the ark well ahead of the floods. Those who waited to see the flood before they did something all perished.
Here God was inviting righteous Noah to come into the ark for safety of him and his family. Today God is inviting us to come into the ark of His presence, so that He can save us and our families too from the floods of destruction that are coming. If you are already a righteous person, that is good, but that is not enough. Noah was righteous, but he was required to do something more to get into the ark! Our righteousness cannot save us from what is coming. Only obedience to get into the ark can help us.
For after seven more days I will cause it to rain on the earth and I will destroy from the face of the earth all living things that I have made. And Noah did according to all that the Lord commanded.
(Genesis 7: 4-5)