John Gill emphasizes the longsuffering of the Lord as a divine patience directed towards the elect, highlighting that God's delay in returning is not a sign of slackness but a means to ensure the salvation of His chosen ones. He explains that this patience allows for the calling and conversion of the elect, contrasting it with the fate of the wicked. Gill also references the Apostle Paul, affirming their shared doctrine and the wisdom behind Paul's writings, particularly in relation to the coming of Christ and the need for patience among believers. The sermon encourages the faithful to view God's longsuffering as an expression of His grace and love, rather than a delay in His promises.