This psalm is about the benefits of meditating on the Word of God and applying it in everyday life. Two examples of people having God's viewpoint when others had only a human viewpoint are discussed. David who was immersed in the Word, had a history of faithfulness to God and believed God would empower him to kill Goliath when no one else did. Likewise, Joshua and Caleb believed God that they could enter the Promised Land and defeat the giants when the other ten spies did not.