The sermon traces God’s covenant faithfulness from the character of covenant itself – a gracious, one-sided commitment in which the greater party (God) binds Himself to the lesser (His people) – through the Abrahamic covenant, where God promised to make Abraham’s descendants a great nation and bless all nations through him. Lamentations 3’s picture of mercies “new every morning” anchors the sermon’s central claim: great is God’s faithfulness.
From there the message moves to covenant responsibility, showing that God’s grace always comes paired with a call to obedience, from circumcision as a sign for Abraham’s household to the Sabbath as a sign for Israel. It closes by reminding believers in Christ that they are fellow heirs and partakers of this promise, inheriting eternal life through the gospel.