Matthew 23:16, 18

“You blind guides! Great sorrow awaits you, for you teach that there’s nothing binding when you swear by God’s temple, but if you swear by the gold of the temple, you are bound by your oath.

And you say that whoever takes an oath by swearing, ‘By the altar,’ it is nothing. But if you swear, ‘By the gift upon the altar,’ then you are obligated to keep your oath.