In this quote, George Whitefield is describing the principle of the day of judgment, which is a belief held by lots of faiths that there will be a last numeration or assessment of all individuals by a greater power. Whitefield is recommending that on this day, all individuals will come together as soon as again, no matter their differences or circumstances in life. This might be seen as a reminder to live a virtuous and just life, as eventually we will all be held responsible for our actions. It likewise speaks with the concept of unity and equality, as everybody will face the same judgment no matter their status or wealth. In general, this quote serves as a suggestion of the importance of living an excellent life and treating others with compassion and empathy.
"I weep for the liberty of my country when I see at this early day of its successful experiment that corruption has been imputed to many members of the House of Representatives, and the rights of the people have been bartered for promises of office"