At any time after such corporation shall have been duly organized, it shall be lawful for such trustees, at any meeting thereof by a vote of 2/3 of the trustees to amend its articles of association in any manner not inconsistent with the provision of this act: Provided, That before such amendments shall be operative a vote in favor thereof, of at least 2/3 of the members of such church organization, present and entitled to vote shall be obtained by such trustees at a meeting of the members of said church specially called for that purpose, and of which notice has first been given as provided in section 6 of this act, and after such vote of said church organization in favor of such amendment, then a copy thereof shall be filed in accordance with the provision of section 1 of this act. Such copies of the amended articles of association shall be certified by the chairman and secretary of such meeting.