en_tn/psa/050/019.md

You give your mouth to evil

God speaks of a person speaking evil things as if that person's mouth is a messenger whom the person sends to do evil things. Alternate translation: "You are always saying evil things" (See: rc://en/ta/man/jit/figs-metaphor and rc://en/ta/man/jit/figs-synecdoche)

your tongue expresses deceit

The word "tongue" represents the person who is speaking. Alternate translation: "you are always telling lies" (See: rc://en/ta/man/jit/figs-synecdoche)