Proverbs 20:23-25

Complete Jewish Bible

²³ Adonai detests a double standard in weights,
    and false scales are not good.

²⁴ A man’s steps are ordered by Adonai,
    so how can a person understand his own ways?

²⁵ It is a snare to dedicate a gift to God rashly
    and reflect on the vows only afterwards.