That which baptism signifies, operates as long as we live, i.e., every day we die, and every day we rise again. We die, I say, not merely mentally and spiritually, in that we renounce the sins and vanities of the world; but, rather, we begin in fact to leave this mortal body and to lay hold on the future life . . . You must understand baptism to mean something by which evermore you die and live; and, therefore, whether you use the confessional, or any other means of grace, you must still return to the very power that baptism exercises, and begin again to do what you were baptized for, and what your baptism signified . . . Although you only receive the sacrament of baptism once, you are continually baptized anew by faith, always dying and yet ever living . . . All our experience of life should be baptismal in character, viz. the fulfillment of the sign or sacrament of baptism. We have been freed from all else that we might devote ourselves to baptism alone, that is to say, death and resurrection.
Luther, “Pagan Servitude of the Church”