Joseph Cardinal Ratzinger on True Worship and Human Life

True worship is the living human being, who has become a total answer to God, shaped by God's healing and transforming word. And true priesthood is therefore the ministry of word and sacrament that transforms people into an offering to God and makes the cosmos into praise and thanksgiving to the Creator and Redeemer. Therefore Christ, who makes an offering of himself on the Cross, is the true high priest [....]

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Source: Joseph Cardinal Ratzinger, Jesus of Nazareth, Part Two: Holy Week: From the Entrance into Jerusalem to the Resurrection, trans. by Philip J. Whitmore (San Francisco, CA: Ignatius Press, 2011), 238.