a. There is no clear concept of the ending of gospel commission, certainly not of the ripening of the grain or character preparation for the coming of Christ.
b. You can believe and preach righteousness by faith ever so clearly and powerfully for many decades and still the gospel commission not be finished. (See R & H, Righteousness by Faith, p. 3; Olson, pp. 236-239).
c. To believe and preach righteousness by faith clearly is to catalyze the church and the world in a single generation and finish the gospel commission.