William Irvine's progressive revelation continued to evolve over this time, and eschatological themes began to appear in sermons. By 1914, he had begun to preach that the Age of Grace, during which his "Alpha Gospel" had been proclaimed, was coming to a close. As his message turned towards indicating a new era, which held no place for the ministry and hierarchy that had rapidly grown up around the "Alpha Gospel", resentment arose on the part of overseers who saw him as a threat to their positions.