Proverbs 20:9-11

Young's Literal Translation

⁹ Who saith, `I have purified my heart, I have been cleansed from my sin?'

¹⁰ A stone and a stone, an ephah and an ephah, Even both of them [are] an abomination to Jehovah.

¹¹ Even by his actions a youth maketh himself known, Whether his work be pure or upright.