This sermon from Malachi 1:6–2:9 challenges us to examine whether our worship is wholehearted or half-hearted, like the Israelites who dishonored God by offering second-rate sacrifices. It reminds us that God desires our best—not what's convenient—and that true worship flows from a heart anchored in His love. Through Christ, our Great High Priest, we are called to repent and offer sincere, devoted worship in response to His mercy.