Repentance and Believing the Gospel

The first section of the sermon focuses on the main theme: repentance and believing the Gospel are indispensable conditions for salvation. The sermon uses the parable of the prodigal son from Luke 15 to illustrate genuine repentance. The wayward son came to his senses about his mistakes, decided to return home to his father, and asked for forgiveness, and the father received his son with unconditional love. This reflects God's heart toward those who demonstrate sincere repentance.

The second section develops the theological argument by contrasting two groups of people: tax collectors and harlots with the Pharisees. According to Matthew 21:31-32, Jesus declared that tax collectors and harlots would enter the kingdom of God before the religious leaders, because they had believed the Gospel after hearing John preach about repentance. Conversely, the Pharisees appear righteous outwardly but are full of filth and hypocrisy within. This contrast shows that true repentance accompanied by faith, not outward actions or self-righteousness, is what matters.

The third section applies the message to the congregation's practical life by emphasizing that repentance must be genuine awakening leading to concrete changes. The sermon cites 2 Corinthians 7:10-11 about godly sorrow bringing repentance that leads to salvation, including earnest efforts to clear oneself, genuine remorse, fear of God, and fervent commitment in faith. The sermon also reminds believers that when they believe the Gospel, they must keep Christ's commandments and love their brothers and sisters. Repentance and faith are not merely a moment in time but the beginning of a life following Christ with changes in character and conduct.