بسم الله والحمد لله والصلاة والسلام على رسول الله ، وبعد
The most misused/abused phrases by the people to cover-up their mistakes:
1 "Only Allaah can judge"
2 "You don't know what is in the heart"
The statements are true but they are intentionally applied (to support) a wrong (cause). [This was said by `Alee رضي الله عنه in his reply to the Khawaarij - Saheeh Muslim]
The first statement was uttered by the Khawaarij against `Alee رضي الله عنه. The Khawaarij denied the role of man in making decisions and forming judgments; whereas, we do indeed have court systems and judges to make judgments. [See the long conversation between Ibn `Abbaas and the Khawaarij]