The Parable of the Wise Builder begins with Matt. 7:24: "Everyone then who hears these words of mine and does them will be like a wise man who built his house on the rock."
But let us stop right there. We are often so quick to reach the end that we fail to see the beginning. Like scanning through ads when we record TV shows, we simply scan through the "unimportant" parts to get to the interesting parts of the story, like dramatic rain beating down on the two houses, and one house sliding into the sand with a great crash.
But let's slow down a bit. Jesus in this parable has already given us some great lessons in this first sentence. He says all who hear his words and DOES them are wise.
This tells us first that we may actually hear his words. This seems obvious, but to many in Christendom, his words are not that important, or are at best something that we can treat casually and overlook. Some claim that his words were meant to set up an impossible ideal - something that "convicts us" of being sinners by birth, rather than sinners by action, and therefore, we cannot *really* do what he asks.
But this of course cannot be found coming from the mouth of Jesus, who in direct opposition to this idea says that his words will not pass away (Mark 13:31; Matt. 24:35) And in numerous places, he makes clear that those who follow him are to obey his words.
To hear and obey, therefore, are things only free people can do. And human beings have the free will to hear the message that God sent through His Prophet and spokesman, Jesus, and to respond to it. Then, with the help of God's spirit and the example of Jesus' life, we are able to grow toward that Perfect Ideal.
So, we must not ever claim that we're genetically unable to obey and perform Righteous Works for God in the name of Jesus. To do so is to "fast forward" through the difficult work of following Jesus' words.
With this parable, as with many others, Jesus sets before us an ideal of God's Righteousness and tells us "Follow me" (Mark 2:14) and "Obey my teaching" (John 14:23.) God chose and sent Jesus as our perfect ideal, and tells us to follow Jesus - in whom He was "pleased" (Matt. 3:17.)
We are to put his words INTO PRACTICE (Matt. 7:26) so that we do not end up in the shifting sand of man-made beliefs that tell us that obedience to God is an impossible ideal.
This is the challenge of the Good and Beneficial Message ("Gospel") - that we take up the challenge and follow Jesus, doing whatever he said we should do. And in doing so, we build our houses on Rock by ACTING ON his words and putting them into practice (Matt. 7:26) so that we do not end up mired in the shifting sand of a man-made, dangerous belief that obedience to God is an impossible ideal, and can easily be ignored.