Topic summary
Do ut des
Extracted from the Wikipedia article Glossary of ancient Roman religion.
do ut des
The formula do ut des ("I give that you might give") expresses the reciprocity of exchange between human being and deity, reflecting the importance of gift-giving as a mutual obligation in ancient society and the contractual nature of Roman religion. The gifts offered by the human being take the form of sacrifice, with the expectation that the god will return something of value, prompting gratitude and further sacrifices in a perpetuating cycle. The do ut des principle is particularly active in magic and private ritual. Do ut des was also a judicial concept of contract law.