Pure in heart

Blessed are the pure in heart  for they will see God.

Accroding the the blue letter bible "pure" is talking  ethically, with the significance free from corrupt desire, from guilt, (pure- word katharos)

Blessed are the peacemakers, for they will be called children of God. 

Vines says it calls it "loving peacemakers." so that made me think what is a non loving peacemaker.? I suppose that if there is a war, and one group kills another group and then their is peace. That would not qualify for peacemaker. I think peace makers must of a little mercy in them to get themselves in trouble. Peacemakers and people with mercy must be a little co-dependent. Peacemakers and people with mercy make sure you have good boundaries.