Matthew 23:18-22

18Again you say, ‘To swear an oath by the altar doesn’t mean a thing. But to swear an oath by the gift on the altar means a person must keep his oath.’

19You blind men! What is more important, the gift or the altar that makes the gift holy?

20To swear an oath by the altar is to swear by it and by everything on it.

21To swear an oath by the temple is to swear by it and by the one who lives there.

22And to swear an oath by heaven is to swear by God’s throne and the one who sits on it.