It shall be lawful for any church organized under the provisions of this act, by a 2/3 vote of the quarterly conference of said church, to alter or amend its articles of association in any manner not inconsistent with the provisions of this act or the book of discipline of the Methodist Episcopal church; and such alteration or amendment shall become operative when 2/3 of all the members of the quarterly conference shall execute amended articles and the said amended articles are acknowledged in the same manner as stated in section 3 of this act, and the presiding elder has affixed his certificate thereto, as provided in said section, and the same has been recorded or left for record, as provided in section 4 of this act.