איוב, פרק ח׳, פסוק כ״א

The closing words of comfort offered to Job paint a picture of a complete future reversal, where deep pain and sorrow make way for bursting joy. If a person proves to be pure and upright, God will not reject them. Instead, God will grant such abundant goodness that a mouth which previously spoke curses and words of mourning will overflow with laughter and song [תקות אנוש, מצודת דוד]. The grief of the past will be entirely replaced by sounds of pure celebration [ביאור שטיינזלץ].

The dual expressions of laughter and shouting represent different layers of this promised happiness. The primary approach among commentators is that this highlights a division between personal joy and victory over the wicked. The laughter reflects a deep personal happiness over the success, peace, and goodness that will be restored. In contrast, the joyful shouting is a triumphant response to the downfall of enemies who once celebrated the sufferer's misery [מלבי״ם, רמב״ן, תקות אנוש]. Furthermore, this future joy will be so absolute that a person will actually rejoice over the very suffering they endured, recognizing that those hardships directly led to the great reward received in return [מלבי״ם].

Another perspective examines the physical description of this celebration, revealing a state that transcends natural human limits. Ordinarily, when a mouth is stretched wide in heavy laughter, the lips are pulled apart and cannot come together to produce a loud, ringing shout. However, the happiness granted by God will be so immense that this internal joy will overcome physical constraints. A person will manage to shout in triumph with their lips at the exact same time their mouth is filled with laughter. This perfect, elevated joy, given as a reward for accepting suffering in this world, also points toward the boundless happiness reserved for the righteous in the time to come [אלשיך].