"Recalling that God is King allows the believer to calm his emotions (v. 19 ). He is calmed by the realization that his Shepherd-King “gives ear” to his “voice” and protects his soul in the battle (vv. 16– 19 ; 78: 72 ). The believer’s faith is reawakened when he remembers that God will bring justice upon the treacherous ( 55: 23 ). A fresh vision of a benevolent and all-powerful King creates a stable and steadfast faith, inviting other anxious souls to “cast [their] burden” upon the Lord rather than be cast about on the waves of doubt or even be cast down into the “pit of destruction” (vv. 22– 23 ; 1 Pet. 5: 6– 7 ). Even now, Christ rules over all ( Phil. 2: 9 )."
