Abraham “is the father of us all” is how Paul puts it. Three faiths claim what Paul proclaims. Father Abraham and Mother Sarah birthed Judaism through Isaac. Islam’s claim came through Ishmael, the son of Sarah’s slave. And Christianity only got included by adoption. I wonder if God intended us to consider the children of the father of many nations as extended family. I don’t mean all branches of the family tree are able to hope against hope as the adopted children do. The legitimate children depend on who they are and what they do to be acceptable in the God of Abraham’s sight while we who didn’t have a prayer to be included recognize (I hope) our fortunate son and daughter status is due to what has been done for us. Therefore we hope against hope because truth is we were as good as dead before the mercy and grace of God appeared in the Christ, who was handed over to death for our rebellion and raised for our justification. Given the grace extended to us there may be room within our faith tradition to embrace the entire human family as brothers and sisters and work towards the good of all so that the faith of the adopted child becomes the way the other children of Abraham and Sarah and Hagar can also hope against hope and be reconciled to Abraham's God by the only legitimate Son who is Abraham’s Lord.