Final answer:
Paine assures his readers that God is on their side to establish credibility and moral authority.
Step-by-step explanation:
Paine starts his argument by assuring his readers that God is on their side in order to establish credibility and moral authority for his argument. By invoking a higher power, Paine appeals to the readers' sense of righteousness and just cause, making them more likely to be receptive to his ideas. This use of religious language also serves to connect with the predominantly religious audience of the time and frame the American Revolution and independence as a divine mission.
Learn more about Thomas Paine's argument in favor of American Revolution