This leads to another request: ‘Thou prepare mercy and truth, that they may preserve him.’ These phrases can be understood in two ways: since mercy and truth are foundational to realms, some believe it is fitting for David to seek the gifts of compassion, humility, and righteousness that would establish him in his reign. Others contend that David implores God to uphold him as ruler through His mercy and truth, implying that the sustainability of his kingdom relies solely on divine grace and fidelity. The term prepare clearly indicates that God has readied the resources necessary to protect His servants. According to the Septuagint's translation, the essence of these words reveals that God's mercy toward humanity and the truthfulness with which He honors His promises are unfathomable, vast beyond comprehension, surpassing all understanding and reason. Ultimately, he resolves to continually engage in songs of praise to honor the most sacred name of God, crafted to fulfill his commitments. It is noteworthy that there exists a beautiful symmetry between the two aspects of his praise. For David resorted to God’s assistance in the face of danger just as he expressed gratitude upon his deliverance. Thus, he proclaims, I will sing unto Thy name forever, to fulfill my vows day by day.