Luke 3:7-9

Bear fruits in keeping with repentance.
And do not begin to say to yourselves, ‘We have Abraham as our father.’
For I tell you, God is able from these stones to raise up children for Abraham.

And do not begin to say to yourselves, 'We have Abraham as our father.'

As D. Martyn Lloyd-Jones reminds us in his Studies on the Sermon on the Mount, we Christians, we who are 'poor in spirit' have no birthright claim on anything pertaining to the kingdom of God.