Mark 6

 As the Savior was about to feed the five thousand - 

"...he commanded them to make all sit down by companies upon the green grass.

40 And they sat down in ranks, by hundreds, and by fifties."  (Mark 6:39–40)

To me, He was teaching that organization in groups was an essential part of ministering.  He organized them.  They did not choose how and where they wanted to be ministered to.  We see that today in wards, stakes, and so forth.