In Matthew 6:19–24, we confront Jesus’ stark warning that money behaves like a rival master, Mammon, shaping our loyalty, vision, and security. We expose three lies of Mammon (earthly treasure lasts, more means you’re better, and you can split allegiance) with practical counter-practices for everyday discipleship. The call is simple and freeing: renounce Mammon’s claims, re-aim your treasure toward God’s kingdom, and let generosity train your heart to serve the better Master, Jesus.