Mind - The Hebrew word is used sometimes for “mind” or “reason,” sometimes for “passion,” or “wrath.” The reticence commended would include…

The fool (khesîl,Proverbs 1:22) utters all his mind. —Or, pours out al…

A fool utters all his mind
At once; tells all he knows, all that is in his breast; whatever he thinks, and all that …

He is a fool who tells everything he knows and cannot keep a secret.