'Hard' in the Bible

With the hard work of your hands you will get your bread till you go back to the earth from which you were taken: for dust you are and to the dust you will go back.

And he gave him the name of Noah, saying, Truly, he will give us rest from our trouble and the hard work of our hands, because of the earth which was cursed by God.

So they went on from Beth-el; and while they were still some distance from Ephrath, the pains of birth came on Rachel and she had a hard time.

And to the first he gave the name Manasseh, for he said, God has taken away from me all memory of my hard life and of my father's house.