From One Hundred & Twenty Wise Sayings 
from The Holy Fathers of the Orthodox Church:

For Christians above all men are forbidden to correct the 
stumblings of sinners by force…it is necessary to make a man 
better not by force but by persuasion. We neither have authority 
granted us by law to restrain sinners, nor, if it were, should we 
know how to use it, since God gives the crown to those who are 
kept from evil, not by force, but by choice. 
–St. John Chrysostom