This is part of King David's final prayer of thanksgiving, a portion of his benediction preceding the building of the Temple, as he had made provision for it so that Solomon could begin construction with everything in order.
The words should be meaningful, coming to us from the heart of one we admire, of whom even God said was a man after His own heart. It schools us in how David felt about God. It touches on His greatness, power, glory, majesty, rulership, headship, and strength. How puny we are by comparison! We are nothing, aliens and pilgrims in a world that gives us no recognition. Compared to His, our days are but a shadow, and despite this, we are able to make an offering to Him because He has given us all we have.
Who is this One to whom we pray, calling Him "Father," "Lord," or "God"? Who is this One whom we refer to as our Creator, Healer, Savior, or Sustainer? Who is the One who is referred to as the Almighty Ruler, Life-giver, and Forgiver of our sins?
He is the sovereign Ruler of all that He has created. The term "sovereignty" first speaks of supremacy of authority, but with the exception of personal evil, God reveals Himself in His Word as supreme in every aspect of life. He is the Most High. To say that God is sovereign is to declare that He is the Almighty, the Possessor of all power in heaven and earth; none can defeat His counsels, thwart His purpose, or resist His will. Thus, Psalm 115:3 asserts, "But our God is in heaven; He does whatever He pleases."
Can we accept this? Is this merely a listing of grandiose titles of One who is great in His being but distant and remote in the actual operations of our lives? Do we relate to Him merely as most people in this world do, or is His greatness truly personal to us, as it was to David, because we know Him personally?