13 “When I shut up the heavens so that there is no rain, or command locusts to devour the land or send a plague among my people, 14 if my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then I will hear from heaven, and I will forgive their sin and will heal their land. 15 Now my eyes will be open and my ears attentive to the prayers offered in this place.
It doesn't get more plain than that. He is a holy God who deserves our whole hearted devotion. There is no denying in light of the drought, fires & storms tearing across the US, not to mention the earthquakes and all kinds of devastation around the world, that this is a wake up call from the one true and living God.