Romans 11:6

And if it is by grace, it is no longer by works, otherwise grace would no longer be grace.

And if by grace, then it is no longer by works; if it were, grace would no longer be grace.

But if it is by grace, it is no longer on the basis of works, otherwise grace is no longer grace.

And if they are saved by God’s kindness, then it is not by their good works. For in that case, God’s wonderful kindness would not be what it really is––free and undeserved.

They're holding on, not because of what they think they're going to get out of it, but because they're convinced of God's grace and purpose in choosing them. If they were only thinking of their own immediate self-interest, they would have left long ago.

But if it is of grace, then it is no longer of works: or grace would not be grace.

But if it is by grace, it is no longer on the basis of works, otherwise grace would no longer be grace.

And if by grace, then it is no longer of works; otherwise grace is no longer grace. But if it is of works, it is no longer grace; otherwise work is no longer work.

And if it is by grace, it is no longer by works, otherwise grace would no longer be grace.