Deuteronomy 32:46 And he said unto them, Set your hearts unto all the words, which I testify among you this day, which ye shall command your children to observe to do, all the words of the law.
We respond to the Gospel of Christ by daily setting our hearts to hear and do God’s Word. Setting the heart has to do with intention and desire. The Holy Spirit plants that desire in the heart: “for it is God who works in you, both to will and to work for his good pleasure [Philippians 4:13].” We sinners are not always faithful to our intention nor able to follow up our desire. So we fail. But Jesus never fails.
For this reason we need to recharge every week by going to church to hear the Gospel proclaimed. And we renew every day by sincere repentance and genuine faith in the gospel. We go to Communion to partake “in remembrance of Me.” We remember our Baptism by dying to self daily and rising to new life by faith. We hear and read the words of Law and Gospel, and then the Holy Spirit sets the heart to repent, believe and do. We must do so daily since we are dead in sin and the flesh is weak. We need to be reminded of our commitment (setting the heart) and that we are alive in Christ and willing in the Spirit. Voila, life is changed!