Taking out the plank from one's own eye
SN 55.7; MN 8; Dhp 158-159; MN 40


  
  One should first establish oneself in what is proper; then only should one instruct others. Thus the wise man will not be reproached.
  One should do what one teaches others to do; if one would train others, one should be well controlled oneself. Difficult, indeed, is
  self-control.
  
  
  
  
  SN 55.7  Since I dislike this thing, how can I inflict it on someone else?