Where in Columbus's description of "A Spectacle of Great Beauty" do we see evidence of the three G's of exploration?
Gold, God, and Glory. These have been described as motives for European dominance of the new world. In Christopher Columbus’s account of his time with the native populations, he explicitly describes the motivation of converting the Indians to Christianity. He states that because of the homogenous nature of their culture would make it easy to convert them. Columbus even mentions that proselytising the masses was a goal of the Spanish king. A segment of the European populace had hoped to convert the indigenous people to God.
Columbus describes how generous the people of the islands are. In doing so, he implicitly states that it would be easy to exploit them for their resources and possessions. He states on a couple different occasions that the Indians are not concerned about private property or the notion of ownership. The fact that Columbus felt the need to mention their generosity and ignorance of private property indicates a motive of gold and wealth.
The notion of glory, or future military glory, is insinuated by Columbus in his writing. He mentions how docile the natives are and how they seem to avoid conflict. Columbus makes it a point to mention how inferior the weapons of the indigenous people are, and how cowardly they act around the explorers. This undoubtedly is done with the idea of conquest and glory in mind.