John 15:5

3You are already pruned clean because of the word which I have spoken to you. 4Remain in me, and I in you. As the branch can’t bear fruit by itself unless it remains in the vine, so neither can you, unless you remain in me. 5I am the vine. You are the branches. He who remains in me and I in him bears much fruit, for apart from me you can do nothing. 6If a man doesn’t remain in me, he is thrown out as a branch and is withered; and they gather them, throw them into the fire, and they are burned. 7If you remain in me, and my words remain in you, you will ask whatever you desire, and it will be done for you.