Jesus told a parable that He is the grapevine and as Christians we are the branches where the grapes grow.
15 “I am the true grapevine, and my Father is the gardener. 2 He cuts off every branch of mine that doesn’t produce fruit, and he prunes the branches that do bear fruit so they will produce even more. 3 You have already been pruned and purified by the message I have given you. 4 Remain in me, and I will remain in you. For a branch cannot produce fruit if it is severed from the vine, and you cannot be fruitful unless you remain in me.
5 “Yes, I am the vine; you are the branches. Those who remain in me, and I in them, will produce much fruit. For apart from me you can do nothing. 6 Anyone who does not remain in me is thrown away like a useless branch and withers. Such branches are gathered into a pile to be burned. 7 But if you remain in me and my words remain in you, you may ask for anything you want, and it will be granted! 8 When you produce much fruit, you are my true disciples. This brings great glory to my Father.