minding your own business in the Bible

when Peter heard that John was not going to see death he asked Jesus what about himself. Jesus said if I say one thing to one man, what is that to you? You have to conclude that he was telling Peter to mind his own business and not involve himself with anyone else's. There are some in the churches who have to realize that a slave of Christ does as he is told and there are no raised eyebrows or hand clapping about it.