If Noah was not of Jewish descent, of what race was he? What races had already been created before the time of Noah?
And how and why did God choose Noah and his family to be the survivors of the Great flood?
If Noah was not of Jewish descent, of what race was he? What races had already been created before the time of Noah?
And how and why did God choose Noah and his family to be the survivors of the Great flood?
Noach as a direct descendant of Adam was a member of the Human Race. At that time, people were divided into families and the concept of race had not yet been set up.
The dispersion of the human race into different national groups did not occur until the Tower of Babel (in 1996 after creation, 300 years after the flood). Until then the human race was divided into family groups which then spread out and inherited the various parts of the world.
Judaism was not set up until the revelation at Sinai. As a result, Noach could not be Jewish.
Your second question is answered in Breishis 6:8-9
But Noah found favor in the eyes of the Lord.
These are the generations of Noah, Noah was a righteous man he was perfect in his generations; Noah walked with God.
Hashem still had the intent to save humanity and restart them with the righteous family that existed. This was the only family that had raised above the general depravity of the time and could have been used to restart the world.
An interesting point is to compare this to the punishment of the Jews at the Golden Calf. Originally, Hashem said he would wipe out the Bnai Yisrael and start again with Moshe. This is exactly what happened with the flood, but Noach accepted what Hashem said rather than reacting as Moshe did. However, that is a different matter and does not need to be gone into here.