Matthew 23:16, 18

“How terrible for you! You guide the people, but you are blind. You say, ‘If people swear by the Temple when they make a promise, that means nothing. But if they swear by the gold that is in the Temple, they must keep that promise.’

And you say, ‘If people swear by the altar when they make a promise, that means nothing. But if they swear by the gift on the altar, they must keep that promise.’