Matthew 21:23-32 – Jesus’ parable of the two sons | Sunday 27th September 2026 | Message by Pastor Rolly Stahl

Friends, how do you feel when people don’t keep their word?
- Like when you arrange to catch up at a venue, but they don’t show up – or call you.
- Or you invite people to dinner, and they say, “Yeh, I’ll get back to you about that.” But they don’t.
- Or someone says, “I’ll get that job done for you by the end of the week.” But a month later, nothing’s done.
When such things happen, you might feel disappointed, miffed, or rejected.
You might feel disrespected, perplexed, or even angry.
So you call them to find out what happened. They give a lame excuse, a quick apology, and promise to do better in future. But if they keep breaking their word, what happens to trust? (It evaporates) And what happens to the relationship? (It falls apart)
Friends, let me ask: How’s your track record? Are you a person who can be trusted to keep their word?
Healthy relationships require more than just lip service. Lip service is when we give a commitment in words – but don’t back it up with action.
At the end of the day, mere lip service is hypocrisy. It’s saying one thing – but doing another. Jesus warned his followers not to be like the religious leaders of his day because many of them were hypocrites.[1] They put on a show of piety to impress people. But they didn’t impress God because it was fake. It was just an act.
Jesus arrives in Jerusalem
In Matthew 21, Jesus rides into Jerusalem on a donkey and is given a king’s welcome. He clears out the temple courts and heals a bunch of people. A day or two later, Jesus is teaching in the temple. The leading priests and elders confront him: “By what authority are you doing all these things? Who gave you the right?” (Matthew 21:23 NLT)
Jesus stitches them up with his reply: “I’ll tell you by what authority I do these things if you answer one question. Did John’s authority to baptize come from heaven, or was it merely human?” (Matthew 21:24-25 NLT) Now if they answer, “From heaven,” Jesus will say, “Then why didn’t you believe him.” If they answer, “Merely human,” they’d be mobbed because the people regarded him a prophet. They said to Jesus, “We don’t know.” So Jesus didn’t answer their question!
Jesus tells the religious leaders a story
“What do you think? There was a man who had two sons.
He went to the first and said, ‘Son, go and work today in the vineyard.’
“‘I will not,’ he answered, but later he changed his mind and went.
“Then the father went to the other son and said the same thing.
He answered, ‘I will, sir,’ but he did not go.
“Which of the two did what his father wanted?”
“The first,” they answered. (Matthew 21:28-31 NLT)
The first son changed his mind. (v.29)[2] Does that ring a bell? It’s a similar word to “repent”. The common Greek word for repent (metanoew) means “change of mind.” The Greek word in Jesus’ story (metamelomai) means “to regret, be sorry, or change one’s mind.” After his initial rebellion, the first son did what his father wanted.
The second son gave lip service. He said, “Yes sir!” But then he disobeyed his father.
Jesus unpacks his story for his audience
Jesus said to the leading priests and elders, “I tell you the truth, the tax collectors and the prostitutes are entering the kingdom of God ahead of you. For John came to you to show you the way of righteousness, and you did not believe him, but the tax collectors and the prostitutes did. And even after you saw this, you did not repent[3] and believe him.” (Matthew 21:28-32 NLT)
At the preaching of John, the notorious rule-breakers repented of their wrongdoing and turned to the Lord for mercy. They confessed their sins and were baptised.[4] Like the first son in Jesus’ story, they did what Father God wanted.
Now friends, can you remember what John the Baptist said to the religious leaders who came out to watch him baptize at the Jordan River?
“You brood of snakes! Who warned you to flee the coming wrath? Prove by the way you live that you have repented of your sins and turned to God. Don’t just say to each other, ‘We’re safe, for we are descendants of Abraham.’ That means nothing… Even now the ax of God’s judgment is poised, ready to sever the roots of the trees. Yes, every tree that does not produce good fruit will be chopped down and thrown into the fire.” (Matthew 3:7-10 NLT)
In other words, “No good fruit – get chopped off at the root. No good fruit – get the boot.”
The religious leaders refused to repent and believe John’s preaching.
And they refused to repent and believe in Jesus.
They were more interested in their position and power than in pleasing God.
That’s why they rejected Jesus as their Messiah – and had him killed.
In his sermon on the mount, Jesus reiterates John’s words:
“A good tree can’t produce bad fruit, and a bad tree can’t produce good fruit. So every tree that does not produce good fruit is chopped down and thrown into the fire. Yes, just as you can identify a tree by its fruit, so you can identify people by their actions.” (Matthew 7:19-20 NLT)
In the next verse, Jesus draws a clear line in the sand:
“Not everyone who calls out to me, ‘Lord! Lord!’ will enter the Kingdom of Heaven. Only those who actually do the will of my Father in heaven will enter.” (Matthew 7:21 NLT)
What do Jesus’ words mean for us?
To address Jesus as “Lord” and refuse to do what he says is a contradiction. When we keep deliberately disobeying Jesus, we are denying him as Lord of our lives.
Jesus calls us to turn away from doing life our way, to receive his forgiveness for all our past mistakes, and to let him call the shots for our lives. It means daily dying to self – and rising to new life in Christ. It’s only possible by the power of the Holy Spirit.
And it’s more than lip service. It requires a change of heart, a change of mind, and a change of life. The fruit of repentance and the fruit of the Holy Spirit is joyful obedience to the Father’s will – as revealed in Jesus. Regardless of our past failures, all who believe in Jesus and follow him as Lord, share in the kingdom of God.
Friends, as a faithful Son, Jesus always said “Yes” to his Father’s will – AND did what his Father wanted. Remember, in the Garden of Gethsemane Jesus cried out: “My Father! If it is possible, let this cup of suffering be taken away from me. Yet I want your will to be done, not mine.” (Matthew 26:39 NLT) Jesus’ perfect obedience has made it possible for us to be forgiven and to come into God’s forever family.
Here’s why Jesus wants us to put his words into practice!
In the closing words of his sermon on the mount, Jesus says:
“Anyone who listens to my teaching and follows it is wise, like a person who builds a house on solid rock. Though the rain comes in torrents and the floodwaters rise and the winds beat against that house, it won’t collapse because it is built on bedrock.
But anyone who hears my teaching and doesn’t obey it is foolish, like a person who builds a house on sand. When the rains and floods come and the winds beat against that house, it will collapse with a mighty crash.” (Matthew 7:24-27 NLT)
In both scenarios there are floods, winds, and storms. But only the house built on solid rock stands firm. Friends, we will never be losers by listening to Jesus and following his instructions for our best possible life – in this life, and into eternity.
Jesus – who always keeps his word – promises us:
“My sheep listen to my voice;
I know them, and they follow me.
I give them eternal life,
and they will never perish.
No one can snatch them away from me.” (John 10:27-28 NLT) Amen.
(c.1470 words)
Three points for personal reflection:
1. How do you think Father God feels when we don’t trust him to keep his word and his promises? What promise from God’s word inspires you to press in closer to him?
2. How do think Father God feels when our passion for the things of this world is greater than our passion for Jesus and his kingdom? I invite you to tell God what distractions might be affecting your relationship with God, and to ask for his mercy and help.
3. Are there some places in your life where you’ve been ignoring what Jesus wants for you? How’s that working out for you? Since Jesus has better things in store for us, why not take this opportunity to repent, receive Jesus’ forgiveness, and ask the Holy Spirit to help you follow Jesus in obedience?
An audio version of this message is available on St John’s Lutheran Church Tea Tree Gully YouTube page: https://youtu.be/0EO1Y0ufpeQ
[1] See: Matthew 6:2,5,16; Matthew 15:7, 23:18-29, 24:51.
[2] μεταμέλομαι (metamelomai) – to change one’s mind and purpose, to repent, or regret. This word is found in: Matthew 21:29 & 32. Matthew 27:3 Judas was filled with remorse. 2 Corinthians 7:8 Paul did not regret the sadness from his letter to the believers at Corinth. Hebrews 7:21 “The Lord has sworn and will not change his mind, ‘You are a priest forever’.
[3] The same word from verse 29, metamelomai, is used here.
[4] Matthew 3:1-6.








