In Romans 11:2-5, Paul presents his fifth of seven arguments as to why God’s plan for the nation of Israel has not failed.
It is that God has always worked with and saved a remnant.
If we should be as Elijah and think that because there are so few in this age who follow Christ, we should be encouraged that we are part of a remnant – that though small, can nevertheless do great things for the sake of His glory!