Difference Between Khashyah and Khushu'

Khushu' (خشوع) comes from the idea of something becoming soft and low — branches lowering, the earth becoming soft, something humbling itself. It is a kind of humility in posture and state.

Khashyah (خشية) is a form of fear. Fear is a powerful emotion and human beings can react to it in very different ways — with retaliation, anxiety, cowardice, or even defiance. The person who says "I'm tired of fearing Allah, I'm going to challenge him" has reacted to fear in exactly the wrong way.

But the fear of facing Allah — the fear that comes from knowing I owe Him something and I may not have delivered on that — should not produce defiance or arrogance or complete defeat. It should produce humility. When I owe someone something and I have not delivered, the healthy response is a humble acknowledgment of that failure, not pride or collapse.

The Quran combines them here because khashyah is the raw emotion, and khushu' is the correct response to that emotion. The fear of Allah should make you soft, humble, and lowered — not broken, not reactive, not arrogant. That is the subtle but powerful psychological concept being expressed.