John 10:2

“Most certainly, I tell you, one who doesn’t enter by the door into the sheep fold, but climbs up some other way, is a thief and a robber.

The gatekeeper opens the gate for him, and the sheep listen to his voice. He calls his own sheep by name and leads them out.

Whenever he brings out his own sheep, he goes before them; and the sheep follow him, for they know his voice.

They will by no means follow a stranger, but will flee from him; for they don’t know the voice of strangers.”