Wrong ideas of sanctification also spring from neglecting or rejecting the divine law. These theories, involving false teachings and dangerous practical results, are often popular. LF 193.2
Paul wrote, “This is the will of God, your sanctification.” The Bible clearly teaches what sanctification is and how we can attain it. The Savior prayed for His disciples: “Sanctify them by Your truth. Your word is truth.” And Paul taught that believers are to be “sanctified by the Holy Spirit.” (1 Thessalonians 4:3; John 17:17; Romans 15:16.) LF 193.3
What is the work of the Holy Spirit? Jesus told His disciples, “When He, the Spirit of truth, has come, He will guide you into all truth” (John 16:13). And the psalmist says, “Your law is truth.” Since the law of God is “holy and just and good,” a character formed by obeying that law will be holy. Christ is a perfect example of a character like this. He says: “I have kept My Father's commandments.” “I always do those things that please Him.” (John 15:10; 8:29.) The followers of Christ are to become like Him—by the grace of God to form characters in harmony with the principles of His holy law. This is biblical sanctification. LF 193.4