Complex sentence: The Sermon on the Plain contains a set of teachings including the four beatitudes and the four woes that may be compared with the more extensive Sermon on the Mount as recounted by the Gospel of Matthew.
Split into simpler sentences: The Sermon on the Plain starts with a set of teachings about the four beatitudes and the four woes. The sermon may be compared with the more extensive Sermon on the Mount as recounted by the Gospel of Matthew.