"Whoever does not enter the sheep's pen through the gate but climbs in some other way is a theif and an intruder. The one who enters through the gate is shepherd of the sheep; the keeper opens the gate for him. The sheep hear his voice, and he calls his own by name and leads them out. When he has brought out [all] those who are his, he walks in front of them, and the sheep follow him because they recognize his voice. They will not follow a stranger; such a person they will flee, because they do not recognize a stranger's voice." - John 10:1-5