Jesus is the Good Shepherd and the Lamb of God

John 10:11-18

11  “I am the good shepherd. The good shepherd lays down his
life for the sheep.
  12  The hired hand is not the shepherd and does not own the
sheep. So when he sees the wolf coming, he abandons the
sheep and runs away. Then the wolf attacks the flock and
scatters it.
  13  The man runs away because he is a hired hand and cares
nothing for the sheep.
14  “I am the good shepherd; I know my sheep and my sheep
know me—
  15  just as the Father knows me and I know the Father—and I
lay down my life for the sheep.
  16  I have other sheep that are not of this sheep pen. I must
bring them also. They too will listen to my voice, and there
shall be one flock and one shepherd.
  17  The reason my Father loves me is that I lay down my
life—only to take it up again.
  18  No one takes it from me, but I lay it down of my own
accord. I have authority to lay it down and authority to take it
up again. This command I received from my Father.”