Wisdom 1:11

11 Keep yourselves therefore from murmuring, which profiteth nothing, and refrain your tongue from detraction, for an obscure speech shall not go for nought: and the mouth that belieth, killeth the soul.

Wisdom 1:11 In-Context

9 For inquisition shall be made into the thoughts of the ungodly: and the hearing of his words shall come to God, to the chastising of his iniquities.
10 For the ear of jealousy heareth all things, and the tumult of murmuring shall not be hid.
11 Keep yourselves therefore from murmuring, which profiteth nothing, and refrain your tongue from detraction, for an obscure speech shall not go for nought: and the mouth that belieth, killeth the soul.
12 Seek not death in the error of your life, neither procure ye destruction by the works of your hands.
13 For God made not death, neither hath he pleasure in the destruction of the living.
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