Cody knows the Master’s Voice. That is why he is able to come when the Master calls.
Cody knows that whenever he comes to the Master, it is for his good. The Master takes care of him.
My sheep listen to my voice; I know them, and they follow me. I give them eternal life, and they will never perish. No one can snatch them away from me, for my Father has given them to me, and he is more powerful than anyone else. No one can snatch them from the Father’s hand.