Before reading Matthew 7:24-27, let your children put 4 toothpicks in a mound of sand and 4 toothpicks in a mound of playdough. Take take the cups to the sink and let them spray water on both. What happens?
These were houses of toothpicks, but each of us are building houses of character. Character is the good or bad qualities we have such as kindness or unkindness, self-control or impatience, etc.