I like the way "The Message" paraphrases John 10:27 - 29:
"My sheep recognize my voice. I know them, and they follow me. I give them real and eternal life. They are protected from the Destroyer for good. No one can steal them from out of my hand. The Father who put them under my care is so much greater than the Destroyer and Thief. No one could ever get them away from him."
After reading those verses... listen to this song by the David Crowder Band. The song is called "Never Let Go."