Abraham, Isaac, Israel, Ishmael, and Gentiles...Jews, Muslims, Christians, Atheists,...all under sin...
What then? are we better than they? No, in no wise: for we have before proved both Jews and Gentiles, that they are all under sin;
As it is written, There is none righteous, no, not one:
There is none that understandeth, there is none that seeketh after God.
--ROMANS 3.9-11
But the scripture hath concluded all under sin, that the promise by faith of Jesus Christ might be given to them that believe.
--GALATIANS 3.22
http://www.balaamsassspeaks.blogspot.com/2014/08/why-do-heathen-rage.html
...developing...