<P> Originally , abiding by the recommendations and prohibitions of the Word of Wisdom was not considered mandatory : it explicitly declares itself to be `` not by commandment or constraint '' . In February 1834 , however , Joseph Smith proposed a resolution before the high council of the church that stated , `` No official member in this Church is worthy to hold an office after having the word of wisdom properly taught him ; and he , the official member , neglecting to comply with and obey it . '' This resolution was accepted unanimously by the council . </P>
when did the word of wisdom become mandatory
February 1834