'Workmen' in the Bible

Behold, all his fellows shall be ashamed: and the workmen, they are of men: let them all be gathered together, let them stand up; yet they shall fear, and they shall be ashamed together.

The Lord says, The workmen of Egypt, and the traders of Ethiopia, and the tall Sabaeans, will come over the sea to you, and they will be yours; they will go after you; in chains they will come over: and they will go down on their faces before you, and will make prayer to you, saying, Truly, God is among you; and there is no other God.

‘Why have we fasted,’ they say, ‘and You do not see it?Why have we humbled ourselves and You do not notice?’Hear this [O Israel], on the day of your fast [when you should be grieving for your sins] you find something you desire [to do],And you force your hired servants to work [instead of stopping all work, as the law teaches].