Allah does NOT love the public utterance of hurtful speech (language) unless (it be) by one to whom injustice has been done; and Allah is Hearing, Knowing. (Al_Quraan_004.148)

Always use the best words and never target anyone directly, never directly say to anyone "you are an infidel and you will go to Hell" etc. "Show forgiveness, speak for justice and avoid the ignorant." (Al_Quraan_007.199)

It is noticed that some ignorant people directly point FIVE fingers to each other and even use words like SHAITAAN or Disbeliever or other abusing and hurting words etc. Try to use soft and polite words. Try to unite on those which are common among us first and try to make the environment friendly to inform each other and make Duaa for each other.

It is not proper Muslim behaviour to use any words which might hurt others. Even some words are effective enough to kill and now in the west we have seen people, especially teenagers doing suicide or homicide to those who were bullying him / her, and so this is a murder case without the use of weapons etc. There should be wisdom when we talk as a good friend, good informer and effective communicator. Remember we are helpers NOT killers. So help as many people as you can to protect them from Fires of Hell, with Positive Dawah.

"Invite (all) to the Way of thy Lord with wisdom and beautiful preaching; and argue with them in ways that are best and most gracious: for thy Lord knoweth best, who have strayed from His Path, and who receive guidance." (Al_Quraan_016.125)

Also Remember that both Musaa (pbuh) and Khizr (pbuh) were prophets and obeyed Allah BUT disagreed on some of their mission. So we might differ in our missions to help the world, BUT our goal to obey Allah is the same. You might be obeying Allah, according to what you understand and I am also obeying Allah according to what you understand.