Dr. Owen Strachan challenges the misconception that sanctification is solely the responsibility of the believer. He emphasizes that sanctification is a work of God's grace and that it is dependent on Him. Owen highlights seven truths about biblical sanctification, including the fact that it is not a burdening doctrine and that it is not legalism. He also emphasizes that sanctification is the fruit of the Spirit and that it involves both God's work and our active participation.