"On that very day Noah and his sons, Shem, Ham and Japheth, together with his wife and the wives of his three sons, entered the ark. They had with them every wild animal according to its kind, all livestock according to their kinds, every creature that moves along the ground according to its kind and every bird according to its kind, everything with wings. Pairs of all creatures that have the breath of life in them came to Noah and entered the ark. The animals going in were male and female of every living thing, as God had commanded Noah. Then the Lord shut him in." NIV translation
We see again that all were aboard the ark and it happened just as God had commanded. Then, we see that it was God who shut the door and sealed them in. It is a reminder that only God has the power to protect us and only the Father knows when all of His children are safe. In much the same way, the Father is going to tell Jesus to come back and get all of us who are His.