The word "gaping" is highly effective in conveying Edwards's purpose to his audience because it evokes vivid imagery of a wide-open abyss or mouth, symbolizing the immediate and dangerous threat of hell ready to swallow sinners. This word creates a strong visual and emotional impact, emphasizing the urgency and peril of the spiritual danger faced by the audience. Edwards's use of "gaping" serves to instill fear and a sense of imminent doom, aligning with his goal of motivating his listeners towards repentance and salvation by making the threat of damnation feel present and unavoidable.