'Exchange' in the Bible

And she said to her, "[Is] your taking my husband [such] a small [thing] that you will also take the mandrakes of my son?" Then Rachel said, "Then he may sleep with you tonight in exchange for your son's mandrakes."

And Joseph collected all the money found in the land of Egypt and in the land of Canaan in exchange for the grain that they were buying. And Joseph brought the money into the house of Pharaoh.

And Joseph said, "Give your livestock and I will give you [food] in exchange for your livestock if [your] money is used up."

So they brought their herds to Joseph, and Joseph gave food to them in exchange for horses, their flocks, and their cattle and donkeys. And he provided them with food in exchange for all their livestock that year.

Why should we die in front of you, both we and our land? Buy us and our land in exchange for food, then we and our land will be servants to Pharaoh. Then give us seed and we shall live and not die, and the land will not become desolate."