You have multiplied the nation. You have increased their joy. They rejoice before you according to the joy in harvest, as men rejoice when they divide the plunder.
Even in the darkest hour, God's people possess a nevertheless: they are troubled yet not forsaken, sorrowful yet always rejoicing. The God who forms light and creates darkness has set bounds to both; He can say to the dimness, Thus far you shall go and no further. This is our comfort when all grows black.
AI summary
Commenting on Isaiah 9:1-7
Thou hast multiplied the nation, [and] increased the joy: they rejoice before thee according to the joy in harvest, [and] as [men] rejoice when they divide the spoil. (g) Their number was greater when they went into captivity then when they returned but their joy was greater at their return, .
Isa 9:3 In Isa 9:3 he says, in words of thanksgiving and praise: “Thou multipliest the nation, preparest it great joy; they rejoice before Thee like the joy in harvest, as men rejoice when they share the spoil.” “The nation” (haggoi) is undoubtedly Israel, reduced to a small remnant.