My sheep hear my voice, and I know them, and they follow me; And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of my hand. My Father, which gave them me, is greater than all; and no man is able to pluck them out of my Father's hand. I and my Father are one. -John 10:27-30

All that the Father gives me will come to me, and whoever comes to me I will never cast out. -John 6:37