"But if ordination be understood as applying to the ministry of the Word, we are not unwilling to call ordination a sacrament.  For the ministry of the Word has God's command and glorious promises.  Romans 1:16  The Gospel is the power of God unto salvation to every one that believeth.  Likewise, Isaiah 55:11:  So shall My Word be that goeth forth out of My mouth; it shall not return unto Me void, but it shall accomplish that which I please...And it is of advantage, so far as can be done, to adorn the ministry of the Word with every kind of praise against fanatical men, who dream that the Holy Ghost is given not through the Word, but because of certain preparations of their own...."

Apology of the Augsburg Confession, Article XIII (VII), #11, Concordia Triglotta, St. Louis:  Concordia Publishing House, 1921, p. 311. Tappert, p. 212. Romans 1:16; Isaiah 55:11.