Sublime

Abraham has only the weakness of faith, seeking the promise (the gift of divine action) in negation itself.

Abraham et Sarah,

Avraham, the father of the Jewish tradition, discovered the Truth by searching what it meant to be his true self and the responsibilities that come with that, while those around him had fallen to worshiping desires and other false idols.

The whole point of Abraham in Romans 4, as I have said before in relation to Galatians 3, is not that he is an "illustration" or an "example," as though the saving plan consisted of the simplistic narrative, "Humans sin; God rescues; all is well (and, by the way, God has done this here and there in the past as well)."

Abraham was not a Jew nor yet a Christian; but he was true in Faith, and bowed his will to Allah’s (which is Islam), and he joined not gods with Allah.