John Gill expounds on 1 Peter 3:13, emphasizing that no one can truly harm those who follow God and do good. He reassures believers that God, Christ, angels, and even the law cannot inflict lasting harm on their souls, as they are protected and defended by divine grace. Gill encourages the faithful to imitate God's goodness and to follow Christ, highlighting that even persecution can serve to strengthen their faith and character. Ultimately, he asserts that the trials faced by believers work together for their good, reinforcing the idea that true harm cannot touch their spiritual essence.