This sermon emphasizes the call for believers to live according to God's holy standard rather than conforming to cultural norms. It explores the concept of sanctification, explaining that holiness is not something Christians strive for, but an identity they already possess through their union with Christ. Pastor Ricks stresses the importance of aligning one's lifestyle with this holy identity, particularly in the context of sexual morality. He contrasts God's unchanging truth with the world's shifting values and relativism, encouraging believers to stand firm in their faith and live distinctly from the world.