Romans 9:27

And Isaiah declares about [the nation of] Israel [Isa. 10:22-23], "[Even] if the number of Israelites were [as many] as the grains of sand in the ocean, [still only] a small minority will be saved.

Romans 11:5

So, now also, there is a small minority which has been selected by God's unearned favor [i.e., to be saved].

Treasury of Scripture Knowledge

Summary

For thus saith the LORD; Sing with gladness for Jacob, and shout among the chief of the nations: publish ye, praise ye, and say, O LORD, save thy people, the remnant of Israel.

Bible References

Remnant

Romans 9:27
And Isaiah declares about [the nation of] Israel [Isa. 10:22-23], "[Even] if the number of Israelites were [as many] as the grains of sand in the ocean, [still only] a small minority will be saved.
Romans 11:5
So, now also, there is a small minority which has been selected by God's unearned favor [i.e., to be saved].