The purpose in writing this book is to help believers reach maturity and grow in the faith.
It is in two parts. Part 1 "Building on the firm foundation of the life and teaching of Jesus"
Part 2 " Building a house that will stand" - Living out our faith, responding to the practical challenges and demands laid upon us as followers of Jesus.
Jesus is saying that we must build our lives on a firm foundation, on His teaching. A life that is so based will be able to stand firm in the midst of the storms of life.