2 Chronicles 7:14 ESV
13When I shut up the heavens …14if my people who are called by my name humble themselves, and pray and seek my face and turn from their wicked ways, then I will hear from heaven and will forgive their sin and heal their land.
Mark 11:22-24 ESV
22And Jesus answered them, “Have faith in God. 23Truly, I say to you, whoever says to this mountain,‘Be taken up and thrown into the sea,’ and does not doubt in his heart, but believes that what he says will come to pass, it will be done for him. 24 Therefore I tell you, whatever you ask in prayer, believe that you have received it, and it will be yours.
Joshua 24:14-15 ESV
14“Now therefore fear the Lord and serve him in sincerity and in faithfulness. Put away the gods that your fathers served beyond the River and in Egypt, and serve the Lord.15And if it is evil in your eyes to serve the Lord, choose this day whom you will serve, whether the gods your fathers served in the region beyond the River, or the gods of the Amorites in whose land you dwell. But as for me and my house, we will serve the Lord.”