It is possible for us to get used to our problems and pains. The tragedy is where we get to think that God cannot reverse our hopeless circumstances. That is what happened to Zecharia the father of John the Baptist. He got used to the pain of childlessness that he could not imagine God could intervene. When the Angel told him that he would be a father, he doubted and as a result lost his voice. He could not be part of the celebration a the wife Elizabeth went through the emotions. Do not doubt God otherwise you may lose your voice in celebrating when God does it.