Because the first man, Adam, sinned, all his offspring were born imperfect, with a tendency to break God’s laws. How could Adam’s descendants be saved from sin and gain perfection?
بما ان الانسان الاول آدم اخطأ ،‏ وُلِدت ذريته كلها ناقصة ،‏ بنزعة الى انتهاك شرائع الله .‏