VaYikra 27:33

Verse 33. For a man may not, from his self-derived intelligence estimate his own quality as to good or evil; nor is it allowable to go back from good to evil; if, in the fluctuations of temptations, he fall into evil, he must worship the Lord both by resistance to evil, and determination to good, and, in this case, both states are sanctified; nor can man then pass from a state of good and truth to a state of evil and falsity.