What does the Bible say about salvation for Israel?

In Romans 9:27, it is written, 'Though the number of the children of Israel be as the sand of the sea, a remnant shall be saved.' This underscores the sovereign choice of God where not all of Israel will be accepted but rather only those He has elected. This principle emphasizes God's sovereign grace which assures that a specific group, the remnant, will experience salvation, highlighting the reality of divine election throughout Scripture. It is further supported by God's foreknowledge, emphasizing that He has reserved a people for Himself who do not seek righteousness through the works of the law but through faith.