You have multiplied the nation, and not increased the joy: they joy before you according to the joy in harvest…
Harvest crowns the year with God's goodness. When the harvest is abundant there is universal joy. Everybody rejoices. The owner of the land is glad, because he sees the recompense of reward; the labourers are glad, for they see the fruit of their toil; even those to whom not a single ear may belong nevertheless sympathise in the common joy, because a rich harvest is a boon to all the nation. It is a joyous sight to see the last loaded wain come creaking down the village road, to note the youngsters who shout so loudly, yet know so little what they are shouting about, to mark the peasant on the top of the wain as he waves his hat and gives vent to some gleeful exclamation, and to see them taking it all into the stack or barn. There is joy throughout the village, there is joy throughout the land, when the harvest time is come.
( C. H. Spurgeon.)
Parallel VersesKJV: Thou hast multiplied the nation, and not increased the joy: they joy before thee according to the joy in harvest, and as men rejoice when they divide the spoil.