What did Jesus SACRIFICE?

That did not make the "sacrifice" any less. he sacrificed none the less. The sacrifice was paying the price for our sins if we repent. He himself was perfect so it was voluntary on has part. Now we do not have to pay for our sins because we are imperfect, and sin, and because we do we cannot return to his presents unless those sins are paid for. We would have been forever lost ured of Hell.