Other matters will adjust themselves as the need arises. And this is the sum of the matter: Let everything be done so that the Word may have free course instead of the prattling and rattling that has been the rule up to now. We can spare everything except the Word. Again, we profit by nothing as much as by the Word. For the whole Scripture shows that the Word should have free course among Christians. And in Luke 10 [:42], Christ himself says, “One thing is needful,” i.e., that Mary sit at the feet of Christ and hear his word daily. This is the best part to choose and it shall not be taken away forever. It is an eternal Word. Everything else must pass away, no matter how much care and trouble it may give Martha. God help us achieve this. Amen.
Luther, M. (1999, c1965). Vol. 53: Luther’s works, vol. 53 : Liturgy and Hymns (J. J. Pelikan, H. C. Oswald & H. T. Lehmann, Ed.). Luther’s Works (53:V-15). Philadelphia: Fortress Press. (emphasis mine)