The Salvation promised for few Israel descendants only

God is faithful to his promises even when humans are unfaithful and crooked in our ways.
For his holy name's sake, He has promised to salvage a remnant of the descendants of Israel from among the nations. He will not completely exterminate all Israel descendants because of our error.
Therefore God has not completely rejected the people He first knew and the only people He has known. The people He formed for His praise and glory.
Yahuwah will show mercy to Jacob and will redeem a remnant of His people of Israel. This is just as it is written in the scriptures.