Psalms 18:30

As for God, His way is perfect; The word of the LORD is proven; He is a shield to all who trust in Him.

Surrounding context

18:29 For by You I can run against a troop, By my God I can leap over a wall.

18:30 As for God, His way is perfect; The word of the LORD is proven; He is a shield to all who trust in Him.

18:31 For who is God, except the LORD? And who is a rock, except our God?