Thomas Brooks emphasizes the astonishing love of God, who, despite our sinful nature and rebellion against Him, chooses to adopt us as His children. He marvels at the grace that allows those who have provoked God and lived contrary to His ways to be embraced and cared for as sons. Brooks calls the congregation to stand in awe of this incredible love and the richness of God's grace that transforms our identity from sinners to beloved children. The sermon invites believers to reflect on the depth of God's mercy and the privilege of being part of His family.