'Labored' in the Bible

“She who bore seven sons pines away;Her breathing is labored.Her sun has set while it was yet day;She has been shamed and humiliated.So I will give over their survivors to the swordBefore their enemies,” declares the Lord.

This is what Yahweh of Hosts says:Babylon’s thick walls will be totally demolished,and her high gates consumed by fire.The peoples will have labored for nothing;the nations will exhaust themselves only to feed the fire.