The person that uses the altar to make a promise is really using the altar and also everything on the altar.
You are blind. \{You understand nothing!\} Which is greater: the gift, or the altar? The altar makes the gift holy. \{So the altar is greater.\}
And the person that uses the temple to make a promise is really using the temple and also the One that lives in the temple.
People always use the name of someone greater than themselves to make a vow (promise). The vow proves that what they say is true. And this ends all arguing about what they say.