2 Samuel, 24
24. But the king said to Araunah, "No, I will pay you for all this, for I will not offer to Yahweh my God something that costs me nothing." So David bought the threshing floor and the oxen for fifty shekels of silver.
“Temos muita facilidade para pedir, mas não para agradecer”. São Padre Pio de Pietrelcina