Now that I've met a bunch of ESFps and ISFjs, I have a pretty good idea of how they work. ISFjs and ESFps tend to become defensive at things very quickly. When they see something they do not like, they are quick to throw the hammer of judgement at anyone that they believe has violated their belief systems. ESFps and ISFjs do not like change, as a matter of fact they could possibly be the most unchanging people on planet earth. They are pretty much set in their ways. Any type of philosophical or relativist argument will be cut down quickly as not following "Gods" work. They tend to think that people that violate their beliefs are evil and should be punished. They have a hard time forgiving people. They are extremely stern with their beliefs, and if their beliefs are violated their usually is no forgiveness. They are very sensative, if you say the wrong thing to them that insults them are something, they could be quick to become defensive and they may actually start crying. ESFps and ISFjs are very protective of the ones that they love. They will not stand for their love ones to be violated in any way.