But when it comes to a lost neighbor, a lost cousin, a lost brother — no one." The main message of Luke chapter 15 is about the older brother — the man who lived in the father's house but did not understand the father's heart." Self-centeredness: the first barrierThe older brother, Tong noted, returns from the field unaware that his brother has come home. "For the first time I realized that my briefcase was more important to me than the salvation of that young man," Tong said. "The older brother, though he lived in the father's house, never truly understood the father's heart.