But God said to Abraham, “Do not be displeased about the boy and your slave woman. Whatever Sarah says to you, listen to her voice. For through Isaac shall your seed be called.
and do not think that you can say to yourselves, ‘We have Abraham as our father’! For I tell you that from these stones God can raise up children for Abraham.
Therefore produce fruits worthy of repentance; and don’t even begin to say among yourselves, ‘We have Abraham as our father’! For I tell you that from these stones God can raise up children for Abraham.