Sirach 3:24

24 For many are deceived by their own vain opinion; and an evil suspicion hath overthrown their judgment.

Sirach 3:24 In-Context

22 But what is commanded thee, think thereupon with reverence, for it is not needful for thee to see with thine eyes the things that are in secret.

23 Be not curious in unnecessary matters: for more things are shewed unto thee than men understand.

24 For many are deceived by their own vain opinion; and an evil suspicion hath overthrown their judgment.

25 Without eyes thou shalt want light: profess not the knowledge therefore that thou hast not.

26 A stubborn heart shall fare evil at the last; and he that loveth danger shall perish therein.