Commentaire sur La Genèse 7:7

נח ובניו NOAH AND HIS SONS — The men separately and the women separately, because they were forbidden to live together as man and wife since the world was living in a state of distress

"Before the water..." - He went in before they came. And we don't know the reason why he says in his interpretation that he was of little faith. Because the text testifies that he was righteous and pure and that he did everything God commanded!

Since the world was in a state of grief. It seems that Rashi is answering the question: Why does “The flood waters were on the earth” immediately precede “Noach went in...”? It is to tell us why marital relations were prohibited — the Flood came and the world was in a state of grief. Thus it is written right afterwards, “Noach went in, and his sons...” to show why the men entered separately and the women entered separately, and relations were forbidden. But why does it say the same about their departure [from the ark]: “Noach departed with his sons, his wife and son’s wives” (8:18)? Relations were then permitted! It is because, as Rashi explains later (9:9), Noach was afraid to beget children after the Flood until Hashem gave him a sign that He would not bring another Flood. Thus, [since there was still separation at the time of his departure], it is written “Noach departed with his sons, etc.” (Gur Aryeh)