Final answer:
Manifest Destiny was rooted in the belief that American territorial expansion was divinely ordained and that spreading democracy and Christian values was America's destiny.
Step-by-step explanation:
The connection between Manifest Destiny and Christianity can be traced back to the belief that the expansion of the United States across North America was a divine right, justified and blessed by God. Proponents of Manifest Destiny argued that it was the nation's destiny, even its obligation under divine favor, to spread democracy and Christian values throughout the continent, essentially Americanizing the inhabitants of the land. This belief was fueled by sentiments that Americans were divinely chosen to lead and expand, which provided moral justification for the often aggressive and expansionist policies that followed.