This is what the Lord says:

‘As when juice is still found in a cluster of grapes
    and people say, “Don’t destroy it,
    there is still a blessing in it,”
so will I do on behalf of my servants;
    I will not destroy them all.
9 I will bring forth descendants from Jacob,
    and from Judah those who will possess my mountains;
my chosen people will inherit them,
    and there will my servants live.
10 Sharon will become a pasture for flocks,
    and the Valley of Achor a resting-place for herds,
    for my people who seek me.

‘God always has His faithful remnant, like a few grapes after the harvest (Deut.24:21); and He uses them as the nucleus of a new beginning.’ Warren W. Wiersbe: ‘With the Word’, p.492.

In verse 1 we have seen the Gentiles responding to God’s call. Verses 2-7 showed the Jewish people refusing to come to Him. However, this next section reveals the encouraging news that a remnant of God’s people will be rescued. (See 10:20ff.)

‘The Gentiles, then, are to be brought in, and apostate Judaism rejected (1-7); but vs 8-10 reaffirm the promise of a ‘remnant’ of godly Israelites…God’s dividing line clearly runs not between Jew and Gentile as such, but between ‘seekers’ and ‘forsakers’ (10c-11a), who are respectively blessed and cursed in vs 13-16.’ Derek Kidner: ‘New Bible Commentary’, p.669.