This sermon explores the concept of piety, defined as devoted reverence toward God that results in worship, trust, and obedience. The central message focuses on three specific pious acts outlined in Matthew 6: giving, prayer, and fasting, emphasizing that these should be voluntary responses to God's character rather than performances for human approval. The teaching highlights that giving is a cheerful submission that glorifies God, prayer must be meaningful and rooted in the recognition of God's holiness and kingdom, and fasting serves to humble the believer before the Lord. The preacher encourages the congregation to view these disciplines not as bartering with God, but as daily costs of a Christian life that flows from a heart transformed by grace.