The ocean is acting according to the will of the Lord. We are certain that the Ocean doesnt extend beyond the shore. Otherwise we wont be walking alongside the beach peacefully. If it's not controlled by any power it may even swallow the whole city. It is by the will of the Lord, that the ocean is not crossing the shore.
Similarly the sun is also perfectly moving in its orbit. Even if there is any slight change in the normal functioning it will freeze the whole world. If it comes too closer it will cause fire. So neither fire nor snow is possible only because of the sun's obedience to the will of God.