“But whoever enters through the gate is the shepherd of the sheep. The gatekeeper opens it for him, and the sheep hear his voice, as the shepherd calls his own sheep by name and leads them out. John 10:2–4
Jesus said: “My sheep hear my voice; I know them, and they follow me. I give them eternal life, and they shall never perish. No one can take them out of my hand.” John 10:27–28