מלאכי, פרק ג׳, פסוק כ׳

On the future Day of Judgment, the very same divine light destined to consume the wicked will serve an entirely opposite purpose for those who revere God. For them, this dramatic moment will unfold as a source of deep joy, healing, and salvation, granting them immense delight while the wicked face their punishment.

The primary approach among commentators is that this radiant light symbolizes God's careful providence and the ultimate reward awaiting the righteous. The good deeds and commandments that the faithful performed out of love will reflect back upon them, shining like a rising sun to offer protection [מצודת דוד, מלבי״ם]. Alternatively, the light represents the Day of Judgment itself. Rather than causing harm, the intense reality of that day will act as a soothing remedy, rescuing the righteous from all evil [אבן עזרא, רד״ק]. As this light spreads across the earth, its rays act like protective wings, bringing comfort, healing, and profound pleasure to anyone who seeks shelter beneath them.

Basking in this warmth, the righteous will experience a profound sense of freedom and abundance. Their joy is compared to young calves stepping out of a closed pen where they had been given plentiful food. Just as these calves emerge full of life and energy, the righteous will step into the sunlight to find goodness and plenty wherever they go. They will grow strong, indulge in their rewards, and even dance with pure happiness over their good fortune [רש״י, מצודת ציון, רד״ק, ביאור שטיינזלץ]. This expansion of joy and blessing is also understood by some as a promise for a growing family and many children [צאינה וראינה].

While most commentators interpret this promise as one of physical abundance, tangible rescue, and literal joy, others understand the imagery in a purely spiritual sense. According to this perspective, the shining sun and the well-fed calves are simply metaphors for the ultimate reward of the soul. The light is a bright, sweet presence that heals the very core of the spirit, representing the supreme spiritual understanding and immense inner delight that the righteous will finally achieve [אברבנאל].