The Conclusion

At a glance

The chapter heading text (KJV)

“Therefore whosoever heareth these sayings of mine, and doeth them, I will liken him unto a wise man, which built his house upon a rock… And every one that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand… for he taught them as one having authority, and not as the scribes.”

Matthew 7:24–29 KJV

Summary

Bonhoeffer treats the parable of the two builders as Jesus' own verdict on how the entire Sermon on the Mount is meant to be received. Both builders hear the identical words; the storm that eventually comes treats both houses identically. The only variable in the parable is whether hearing was followed by doing, and Bonhoeffer refuses to let this be softened into a general point about the value of practical religion over mere theory — it is Jesus' own sayings specifically, heard across the whole Sermon just concluded, that must be built upon or ignored.

This closes the loop back to chapter 3's insistence that obedience precedes understanding rather than following it: the wise builder is not distinguished by having grasped the Sermon more thoroughly at an intellectual level, but simply by having acted on what was heard. Hearing that does not lead to doing has not really heard the Sermon at all, on Bonhoeffer's reading — it has only overheard it.

He reads the crowd's astonishment at Jesus' authority, distinct from the scribes, as the proper response to everything that has come before: this was never presented as one respectable religious teaching among others, open to comparison and adaptation, but as the direct, binding word of the one who alone has authority to make such total claims and back them with the promise of a house that stands.

As the short conclusion to Part II, this chapter deliberately declines to add anything new, functioning instead as Bonhoeffer's own insistence that the reader, like the original hearers, now faces a decision rather than a further argument. Everything from the Beatitudes onward has already been said; what remains is simply whether it will be built upon.

Key points

• The wise and foolish builders hear identical words — the only difference between them is whether hearing led to doing before the storm arrived.
• Bonhoeffer reads this as Jesus' own verdict on the whole Sermon: it demands to be built upon, not merely admired or agreed with.
• This closes the loop with chapter 3's claim that obedience precedes understanding — hearing without doing has not really heard the Sermon at all.
• The crowd's astonishment at Jesus' authority (unlike the scribes) confirms the Sermon was delivered as a binding claim, not one teaching among others to weigh.
• As Part II's conclusion, the chapter adds nothing new — it simply names the decision every hearer, including the reader, now faces.

Related Scripture

• Luke 6:46–49
• James 1:22–25
• Matthew 28:20
• Romans 2:13

For reflection and discussion

1. Which specific teaching from this Sermon on the Mount study have you ‘heard’ most clearly but not yet acted on?
2. Bonhoeffer says obedience precedes understanding rather than following it. Where would acting first, before you feel you fully understand, change something in your life right now?
3. What would it mean, practically, for you to ‘build’ on one specific teaching from Part II this week rather than simply agreeing with it in principle?