'Hard' in the Bible

Let me take my wives and my children whom I have acquired by working for you. Then I'll depart, because you know how hard I've worked for you."

You know that I've worked for your father as hard as I could,

If the God of my father -- the God of Abraham, the one whom Isaac fears -- had not been with me, you would certainly have sent me away empty-handed! But God saw how I was oppressed and how hard I worked, and he rebuked you last night."

But Jacob said to him, "My lord knows that the children are young, and that I have to look after the sheep and cattle that are nursing their young. If they are driven too hard for even a single day, all the animals will die.

They traveled on from Bethel, and when Ephrath was still some distance away, Rachel went into labor -- and her labor was hard.