Accept the one whose faith is weak, without quarreling over disputable matters.  Romans 14:1 

Faith 

Since all that is was ever bound to be;
Since grim, eternal laws our Being bind;
And both the riddle and the answer find,
And both the carnage and the calm decree;
Since plain within the Book of Destiny
Is written all the journey of mankind
Inexorably to the end; since blind
And mortal puppets playing parts are we:

Then let’s have faith; good cometh out of ill;
The power that shaped the strife shall end the strife;
Then let’s bow down before the Unknown Will;
Fight on, believing all is well with life;
Seeing within the worst of War’s red rage
The gleam, the glory of the Golden Age. 

                                     Robert William Service