God, Gold, and Glory

During the Age of Discovery, European adventurers explored North America.
Some historians say that these men were driven by God, gold, and glory.

What do you think historians mean by this?

These men were driven by God because in their old country, they couldn’t practice their religion, but in America, there was nobody to tell them what to believe. They thought of America as a chance for freedom.
They were driven by gold because people heard there was gold in America, so everyone thought “Hey, we could become rich!”. Sadly, nobody found gold until 1848.
Finally, they were driven by glory because they thought claiming land and finding gold would bring them lots of fame and glory. People who claimed land got glory, but again, nobody found gold until 1848, after the Age of Discovery.