Sirach 19:10

10 If thou hast heard a word, let it die with thee; and be bold, it will not burst thee.

Sirach 19:10 In-Context

8 Whether it be to friend or foe, talk not of other men's lives; and if thou canst without offence, reveal them not.
9 For he heard and observed thee, and when time cometh he will hate thee.
10 If thou hast heard a word, let it die with thee; and be bold, it will not burst thee.
11 A fool travaileth with a word, as a woman in labour of a child.
12 As an arrow that sticketh in a man's thigh, so is a word within a fool's belly.

The Brenton translation of the Septuagint is in the public domain.