Commentary for Genesis 8:7

יצא ושוב WENT FORTH TO AND FRO — It (the raven) flew in circles round and round the Ark and did not go on its errand for it suspected that he (Noah) intended to injure its mate, just as we learn in the Agada of Chelek (Sanhedrin 108b).

וישלח את העורב, to find out if the atmosphere had dried out after the tops of the mountains had become visible. Noach wanted to know if the atmosphere in the meanwhile was such that the raven could tolerate it.

וישלח את העורב. He sent away the raven. Why did Noach sent away the raven? If it was to examine if the waters had receded sufficiently, why does the Torah not mention this? If the Torah assumed that we could figure this out for ourseleves, why did the Torah mention the reason for Noach sending out the dove? What exactly is the meaning of: "it went to and fro until the water on the earth dried out?" If the meaning is that the raven could not find a place to rest outside the ark and that therefore it kept re-entering the ark and leaving anew, why was there a need to send out a dove altogether? Did not the raven's behaviour indicate that the waters had not yet eased sufficiently? What exactly does the Torah mean by the words עד יבשת המים? Furthermore, did Noach not have sufficient information once he sent out the dove? Why does the Torah not mention that Noach extended his hand to bring the raven back, just as it does in connection with the dove in verse 9?