John Gill emphasizes the longsuffering of God as a profound expression of His mercy and patience, illustrating how this attribute encourages faith and hope among believers. He explains that God's longsuffering is not merely a passive quality but an essential aspect of His nature, reflecting His goodness and restraint of anger. Gill highlights that God's patience extends to both His chosen people and the ungodly, serving various divine purposes, including the eventual salvation of the elect and the demonstration of His justice. He uses biblical examples, such as the patience shown to the Israelites and the mercy granted to sinners, to illustrate God's enduring longsuffering. Ultimately, this attribute reveals God's desire for repentance and His readiness to forgive.