This sermon delves into the interpretation of Hebrews 13:9-10, emphasizing the dangers of false teachings and the importance of adhering to the truth for spiritual growth. Pastor Jim Osman discusses various warnings throughout the New Testament against false doctrines and underscores the necessity of discernment in distinguishing almost-true teachings from the absolute truth. Central to this sermon is the argument that spiritual strength and sanctification come through grace, not adherence to outdated or irrelevant doctrines, particularly dietary laws, which have no bearing on one's spiritual maturity.