'Labour' in the Bible

Therefore said I, Look away from me; I will weep bitterly, labour not to comfort me, because of the spoiling of the daughter of my people.

Thus saith the LORD, The labour of Egypt, and merchandise of Ethiopia and of the Sabeans, men of stature, shall come over unto thee, and they shall be thine: they shall come after thee; in chains they shall come over, and they shall fall down unto thee, they shall make supplication unto thee, saying, Surely God is in thee; and there is none else, there is no God.

Of the labour of his soul he seeth -- he is satisfied, Through his knowledge give righteousness Doth the righteous one, My servant, to many, And their iniquities he doth bear.

Wherefore do ye spend money for that which is not bread? and your labour for that which satisfieth not? hearken diligently unto me, and eat ye that which is good, and let your soul delight itself in fatness.

They shall not labour in vain, nor bring forth for trouble; for they are the seed of the blessed of the LORD, and their offspring with them.