The True Elder Brother

The sermon opens by reviewing all three parables in Luke 15 — the lost sheep, the lost coin, and the two sons — identifying three shared features: the theme of being lost and found, the active and persistent pursuit of the one who seeks, and the celebratory feast upon recovery. The pastor emphasizes that Jesus told these parables in response to the Pharisees' grumbling, and that the third parable addresses two groups: tax collectors and sinners (the younger son) and Pharisees and scribes (the elder son). Both are lost and both need to be saved.

The central portion of the sermon analyzes the elder son's anger and bitterness upon hearing the feast celebrating his brother's return. The elder son refuses to enter, compares his own hard work with his brother's sins, and refers to his brother with contempt as 'this son of yours.' The pastor identifies three dangerous traits in the elder son: first, a heart of bitterness and resentment rooted in comparison; second, a feeling of serving the father as a slave rather than as a son; and third, a prideful, self-righteous attitude that looks down on sinners. This is connected to Paul's words in Galatians 5:19-21, where inner sins such as hatred, jealousy, and anger are listed alongside outward ones — all equally dangerous before God.

The pastor addresses the question of righteousness standards: not a human standard but God's standard, and by that standard all human righteousness is as filthy rags (Isaiah 64:6). The parable of the Pharisee and the tax collector in Luke 18:9-14 is used to illustrate the danger of comparing one's morality to other people rather than to God. The father in the parable steps outside to gently and lovingly urge the elder son to come in and join the feast, demonstrating boundless love and tenderness.

The sermon reaches its climax by identifying Jesus Christ as the true Elder Brother (Hebrews 2:11-12; Romans 8:29). Unlike the elder son in the parable who refused to seek his brother, Jesus left heaven to seek lost younger brothers, embraced them in their filth, and led them home to the Father. He is the one who prepared the great feast of salvation through His broken body and shed blood on the cross — a truth directly connected to the Lord's Supper observed in that same worship service.

The sermon closes with a practical call to action: the congregation must not be passive like the elder son in the parable or like the Pharisees. The church must be a place where sinners come and find love and forgiveness. The people of God must actively bring the message of the Gospel to those who are still lost, speaking to them the words the true Elder Brother spoke to us: 'Come home to the Father.'