Yes, many prophets, many religious leaders, many individuals.
Religion is an individual experience.
When people create groups, cliques, cults, sects, denominations, castes, parties, etc., they simultaneously create division and contention.
The jocks bully the nerds.
The haves bully the have nots.
The physically fit bully the big boned who have a hereditary glandular problem that causes them to gain weight even though they don't really eat that much (when anybody's looking) making it very difficult and pointless to exercise which leads to their depression and the pills to treat it has the adverse side effect of weight gain so it's not their fault.
People have always been fighting and killing each other, even one upping each other in weapon development from fists to ICBMs, since the dawn of man.