Tom tells us if we know what's in Jesus's heart, we can know more about what He's doing. In Matthew 5, when He preaches the Sermon on the Mount, Jesus was changing attitudes from the Old Testament and enlarging some of the principles. He addresses some of the concepts faced during that day. Jesus illustrates a life of stability in times of difficulty by building our house on the rock, not sand. He appeals to people from His care and concern for them, encouraging them to order their lives on the principles He's teaching.