“That one

Who heard his word

And acted on it is

Like a man

Building a house.

He dug deeply.

He laid the foundation

On a rock.

When a flood came,

The river burst

Against that house.

However,

It could not shake it,

Because it had been

Well built.”

ὅμοιός ἐστιν ἀνθρώπῳ οἰκοδομοῦντι οἰκίαν, ὃς ἔσκαψεν καὶ ἐβάθυνεν καὶ ἔθηκεν θεμέλιον ἐπὶ τὴν πέτραν· πλημμύρης δὲ γενομένης προσέρηξεν ὁ ποταμὸς τῇ οἰκίᾳ ἐκείνῃ, καὶ οὐκ ἴσχυσεν σαλεῦσαι αὐτὴν διὰ τὸ καλῶς οἰκοδομῆσθαι αὐτήν.

Luke indicated that Jesus said the one who had heard his word and acted on it was like a man building a house (ὅμοιός ἐστιν ἀνθρώπῳ οἰκοδομοῦντι οἰκίαν).  He dug deeply (ὃς ἔσκαψεν καὶ ἐβάθυνεν).  He laid the foundation on a rock (καὶ ἔθηκεν θεμέλιον ἐπὶ τὴν πέτραν).  When a flood came (πλημμύρης δὲ γενομένης), the streams of the river burst against that house (ροσέρηξεν ὁ ποταμὸς τῇ οἰκίᾳ ἐκείνῃ).  However, they could not shake it (καὶ οὐκ ἴσχυσεν σαλεῦσαι αὐτὴν), because it had been well built (διὰ τὸ καλῶς οἰκοδομῆσθαι αὐτήν).  This is just like Matthew, chapter 7:24-25, which might indicate a Q source.  Jesus said there that these wise people built a house on a rock foundation or solid rocky ground.  The rains fell and the floods came.  The winds would blow and beat against this house, but it did not fall, because it was built on a strong foundation.  This rock foundation was the words of Jesus carried out in daily life.  The fairy tale story of the 3 pigs with the brick, straw, and grass houses is similar to this saying about the stone foundation that could not be destroyed.  How have you built your house?