There are few certainties in our lives others than the fact that we will all experience hardship and trials (I know that is not the most uplifting certainty). When referring to suffering, Jesus calls it the certainty of certainties, we will all go through times of struggle. In Matthew 7:25 Jesus uses the analogy of the rains, wind and floods to depict the conditions of suffering; when we do suffer we have two ways to respond, trust in Jesus as our rock or follow the rest of the worlds advice and build on sand.
The Sermon on the Mount is the first of five major discourses in the Gospel of Matthew. All five follow blocks of narrative material; all five end with the same formula (Like Matt 7:28–29 And when Jesus finished these sayings, the crowds were astonished at his teaching, for he was teaching them as one who had authority, and not as their scribes.) Jesus' Sermon on the Mount deals with ethical issues of deep rooted importance in every age, this “sermon” has caused thousands of books and articles to be written.