The body of Christ is simply a symbol for the wisdom of the Christ consciousness, and the blood of Christ is a symbol for the love of the Christ consciousness.

So the saying that life on earth will be redeemed through the body and blood of Christ is true, but only in the sense that it is through the wisdom and the love of the universal Christ consciousness that the world will be redeemed. It is essential to understand that the world will not be redeemed through jesus sacrifice on the cross alone.
Jesus life was meant to be an example of the spiritual path that all people can walk and thereby attain Christ consciousness (mind of Christ). The world will be redeemed only when a critical mass of people decide to embody the wisdom and the love of the universal Christ consciousness and thereby raise the collective consciousness of humankind to a new level.