The mustard bush was not a plant that any farmer would sow into his field. They are an invasive plant that grows and takes over! It is a weed! And the kingdom of God is like this, it will get into every nook and cranny, it will find every space and it will grow. There is no stopping it! The kingdom of God is going to uproot the kingdom of the world, it is going to overthrow the corrupt systems and rulers. It is going to restore what has been broken, and free the oppressed, and comfort the mourning. And it will be a refuge for all people.