The controversy over the scheduled Lutheran Book of Worship took another turn here when six of the seven members of the Lutheran Church-Missouri Synod's Commission on Worship resigned, charging "deliberate delays" by the denomination on the book's approval.

In a letter to Synod President J. A. O. Preus, the commissioners listed several reasons for their action.

The new worship book has been pending since 1966, when its preparation was placed in the hands of a specially appointed Inter-Lutheran Commission on Worship. The project, initiated by the Missouri Synod, has been supported and ultimately approved by the American Lutheran Church, the Lutheran Church in America and the Lutheran Church of Canada.

At its Dallas convention last summer, the synod appointed a special review committee to consider the manuscript and make recommendations to the 1979 convention. The three other churches agreed to go ahead with publication next fall.

The six resigning members of the synod's worship commission charged that "the question of fellowship, rather than alleged doctrinal error, is the real reason for delaying approval" of the worship book.

The commissioners resigning are Dr. Paul Foelber, chairperson, Ann Arbor, Mich., the Rev. Paul Peterson, St. Paul, Minn., the Rev. Henry C. Abram, Orlando, Fla., the Rev. Jaroslav Vajda, St. Louis; Dr. Carlos Messeri, Lincoln, Neb., and Rodney Schrank, St. Louis.