פּירוש אויף תהילים 97:4

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.”