John 10:7, 9, 16

Jesus therefore said unto them again, Verily, verily, I say unto you, I am the door of the sheep.

I am the door; by me if any man enter in, he shall be saved, and shall go in and go out, and shall find pasture.

And other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and they shall become one flock, one shepherd.