Sirach 19:6

6 And those who are reticent to speak diminish wickedness.

Sirach 19:6 In-Context

4 Those who trust others too quickly have empty heads, and those who sin injure themselves.

5 Those who rejoice in wickedness will be condemned.

6 And those who are reticent to speak diminish wickedness.

7 Never repeat something that you've heard, and you will not lose anything.

8 Don't report it to a friend or an enemy, and, as long as it wouldn't be a sin for you, don't reveal it.