Rashi on TanakhPsalms 97

The Lord has reigned when He takes the kingdom from Amalek and from his descendants.

the earth will exult This is what Ezekiel said (35:14): “When the whole earth rejoices, I shall make you desolate.” He prophesied this concerning Amalek.

Fire will go before Him in the war of Gog and Magog, for it is written concerning his war (Ezek. 38:22): “And I shall plead against him with pestilence and with blood, and rain bringing floods and great hailstones, fire and brimstone.”

His lightnings His brilliant lights, an expression of (Ezek. 21:15): “It is polished that it may glitter (ברק).”

and quaked “Surely there will be a great earthquake on that day in the land of Israel. And at My presence, the fishes of the sea...will quake.”

[The word] וַתָּחֵל is an expression of (above 48: 7): “pangs (חיל) like [those of] a woman in confinement.”

melted like wax Heb. כדונג, as it is written (Ezek. 38:20): “and the mountains will be thrown down, and the cliffs will fall.”

All worshippers of graven images will be ashamed as it is written (Isa. 2:18): “And the idols will completely pass away.”

who boast Who praise themselves with their worship.

Your judgments Your vengeance.

A light is sown for the righteous A real sowing is prepared to grow for them.