John 10:3-4

10:3 The doorkeeper opens the door for him, and the sheep hear his voice. He calls his own sheep by name and leads them out. 10:4 When he has brought all his own sheep out, he goes ahead of them, and the sheep follow him because they recognize his voice.

John 10:16

10:16 I have other sheep that do not come from this sheepfold. I must bring them too, and they will listen to my voice, so that there will be one flock and one shepherd.