John Gill emphasizes the importance of hospitality in his sermon on 1 Peter 4:9, urging believers to love and care for strangers, particularly those who are displaced for their faith. He explains that hospitality should be shown both by not causing distress to others and by actively providing for their needs, such as food and shelter. Gill highlights biblical examples of hospitality, including Abraham and Lot, and stresses that this practice is not only a natural inclination but also a command from God. He encourages the faithful to embrace hospitality without grudging, viewing it as a vital expression of love and charity among believers, especially those who are strangers to one another.