John 15:2-5

2[As to] every branch in me not bearing fruit, he takes it away; and [as to] every one bearing fruit, he purges it that it may bring forth more fruit.

3Ye are already clean by reason of the word which I have spoken to you.

4Abide in me and I in you. As the branch cannot bear fruit of itself unless it abide in the vine, thus neither [can] ye unless ye abide in me.

5I am the vine, ye [are] the branches. He that abides in me and I in him, he bears much fruit; for without me ye can do nothing.