JFB : Psalms 131

      @Ps 131:1-3. This Psalm, while expressive of David's pious feelings on assuming the royal office, teaches the humble, submissive temper of a true child of God.

      1. eyes lofty--a sign of pride (@Ps 18:27).
      exercise myself--literally, "walk in," of "meddle with."

      2. Surely, &c.--The form is that of an oath or strongest assertion. Submission is denoted by the figure of a weaned child. As the child weaned by his mother from the breast, so I still the motions of pride in me (@Mt 18:3,4 Isa 11:8 28:9). Hebrew children were often not weaned till three years old.
      soul--may be taken for desire, which gives a more definite sense, though one included in the idea conveyed by the usual meaning, myself.