'Bought' in the Bible

but the poor [man] had nothing except for one small ewe lamb which he had bought. He had nurtured her, and she grew up with him and with his children together. She used to eat from his morsel and drink from his cup, and she used to lie in his lap and became like a daughter for him.

Then the king said to Araunah, "No, but {I will certainly buy} it from you for a price; I don't want to offer to Yahweh my God burnt offerings that cost me nothing." So David bought the threshing floor and the cattle for fifty shekels of silver.