John 17:17 — The tool used by God in the sanctification of His people is the truth of His word. In John 17:17, Jesus prays that the Father will sanctify His people with the truth. As Dr. Lloyd-Jones unfolds this text, he asks and answers two important questions: “What does it mean to be sanctified?” and “What is the first truth or doctrine the Christian must consider and study to be sanctified?” In this sermon on John 17:17 titled “Godliness,” Dr. Lloyd-Jones explains that sanctification is the process of becoming more like Christ. The believer is striving to live a holy life and growing in godliness. This godliness that reflects the holiness of God is not just a removal or avoidance of sin in the believer’s life. Godliness that truly demonstrates sanctification is a life that loves God with all of one’s being. If that is the case, then what is the first doctrine or truth to be considered? It is the doctrine of God. The Christian cannot assume the truth about God. The truth or doctrine about God is the starting place of sanctification. As he explains from Scripture, Dr. Lloyd-Jones demonstrates that this first truth is what ultimately leads to godliness.