A wise sentence shall be rejected when it comes out of a fool's mouth; for he will not speak it in due season.
LXX
Sirach 20:20
A wise sentence shall be rejected when it cometh out of a fool's mouth; for he will not speak it in due season.
Parallel Translations
A wise sentence shall be rejected when it cometh out of a fool’s mouth; for he will not speak it in due season.
A parable from a fool’s mouth will be rejected; for he won’t tell it at the proper time.