12-year-old has friends that smoke

Please pray for my family and my 12-yo son to NOT start smoking. He has a group of friends, both girls and boys, similarly-aged. At least one boy and one girl from the group smoke cigarettes.

Please join me in a prayer to our lord Jesus Christ to safeguard my son from picking up this terrible habbit. I already had reassurance from my Church that if we parents aren't smokers, most likely my son will not be one, neither.

He said he would not smoke, but it's that age where I can't control what he does 24/7 anymore ( I can barely control anything he does, actually )

Thank you!