Otherwise grace is no more grace.

Romans 11:5
5 Even so then at this present time also there is a remnant according to the election of grace. 6 And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then is it no more grace: otherwise work is no more work.

Here Saint Paul was trying to explain what election is, grace and work. He is saying it mus be by grace. it couldn't be work. It by grace ye are saved

Thanks for reading I hope you are Bless @jephline