David was sad: his life had been spent in grief, and his years in moaning. His anguish had exhausted his strength, and even his bones had been consumed inside him. Cruel enemies pursued him with malicious cunning, to the point of seeking his life.
At such times he used the best remedy for pain: for he affirms in verse 14: "But I trust in you, O LORD." He had no other refuge but he had found in his faith in the Lord his God.
If the enemies denigrated him, he did not return insult for insult; if they planned to take his life, he did not face violence with violence; but, quietly, he trusted in the Lord. His enemies ran from one side to the other, using all kinds of nets and traps to turn the man of God into his victim; but he faced all his machinations with the simple single defense of trust in God.
Many are the fiery darts of the evil one, but our shield is one. The shield of faith not only extinguishes the darts of fire, but breaks the steel arrows. Even if the enemy's javelins were submerged in the poison of hell, our only shield of faith would keep us unharmed, diverting them from us.
Thus David had the resource of faith in the hour of danger. Note well that he expressed a glorious right, the greatest right a man has ever argued: "I say: You are my God." Whoever can say: "this kingdom is mine," claims a right to be king; whoever can say: "this silver mountain is mine," claims a right to riches; but whoever can say to the Lord: "You are my God," has said more than all monarchs and millionaires could achieve. If this God is your God by His gift of Himself to you, what else could you have? If Jehovah has been made yours by an act of appropriating faith, what else could be conceived? You do not have the world, but you have the Maker of the world, and that is much more. There is no way to measure the greatness of the treasure of the one who has God as his all in all.
Having thus taken the best recourse in trusting Jehovah and having uttered the greatest argument by saying: "You are my God,"