'Labour' in the Bible

Hath not man a life of labour upon earth? and are not his days like the days of a hireling?

If I be wicked, why then labour I in vain?

Is it good for Thee that Thou dost oppress? That Thou despisest the labour of Thy hands, And on the counsel of the wicked hast shone?

Wilt thou trust him, because his strength is great? or wilt thou leave thy labour to him?

She is hardened against her young ones, as though they were not hers: her labour is in vain without fear;